D. seed-tree cutting
PLEASE ANSWER FIRST GETS BRAINLIEST
Answer:
1. molecules
2. Olfaction
3. Genes
4.cilia
5. Nasal cavity
6. Pizza smell, it reminds of food which is good
7. It can have many purposes to small territory, food, mates.
8. Like in #6 a positive association in the limbic system means that youll have a positive association in the plastic system
Answer:
1. Cilia
2. Olfaction
3. Molecules
4. Genes
5. Nasal Cavity
6. I love the smell of sandalwood. My limbic brain plays a big role in my childhood, because when I was younger I used to smell it all the time, and my limbic brains love those memories.
7. Yes, It can help animals when they try to track down prey, navigate in the dark, and stay away from predators.
8. When something smells good it will more likely taste good as well.
some flies produce up to 100 offspring in two weeks why is earth not covered with flies
Flies produce a lot of offspring. Their habitat is usually not near where humans live. You will occasionally get flies in your house if they are looking for a habitat that has food and water.
Answer:Because flies die quickly
Explanation:
If the birth rate is high, the death rate must also be high for populations to be balanced. Flies have a very short lifespan, and are eaten by other organisms.
Stars emit different light types based on the:
A) Dust that surrounds them.
B) Elements that they absorb.
C) Their distance from the Sun.
D) Their distance from the Earth.
Answer:
Stars emit different light types based on the Elements that they absorb.- B)
Answer:
B) Elements that they absorb
Explanation:
5. Which planet is made mostly of gases?
A Mars
B Venus
C Jupiter
D Mercury
Answer:
The answer is C Jupiter
Explanation:
Mercury, Venus, Earth and Mars are rocky planets.
Jupiter, Saturn, Uranus, and Neptune are made up of Hydrogen and Helium gas like a balloon.
Answer:
Jupiter is made mostly of gas
Explanation:
Describe how mutations lead to genetic variations.
Which appears to be more dangerous: the BRC1 or BRC2 mutation?
Analyze a woman’s risk of dying of cancer if she carries a mutated BRC1 gene.
How do heredity and inheritance relate to the data presented in these charts?
What data would you need to see in order to draw conclusions about the effectiveness of preventive surgeries?
What does the age at diagnosis tell you about the mutation?
Explain how breast-cancer genes are still present in the population, despite cancer-related surgeries and deaths.
a simple answer would be nice
Describe how mutations lead to genetic variations.
Mutations are changes in the DNA sequence of any organism. These DNA sequence comprise genes which control all the traits of an organism such as height, weight, eye color or which specific protein will be formed in body at which time. Everything is controlled by tiny pieces of DNA. If there occurs any change in the DNA sequence of an organism, it can be lethal to it, for example: In case of cancerous mutations where proteins controlling cell division are badly affected. Other mutations are simply passed to the offspring leading to genetic variations in the offspring. This is how mutations leads to the changes in genetic of an organism.
Which appears to be more dangerous: the BRC1 or BRC2 mutation?
The BRC1 and BRC2 are mutations or changes in the BRCA gene of humans mostly females. BRCA gene is basically a tumor suppressor gene which in some cases undergo mutations of different types. Some of which can be unharmful while BRC1 and BRC2 are typically very dangerous mutations because they increase the chances of a woman to develop breast cancer. Woman with BRC1 and BRC2 mutations have five times more risk of developing the breast cancer than other women. Studies suggest that BRC1 mutation is more dangerous than BRC2 mutations because a greater number of patients seen have BRC1 kind of mutation. Moreover, BRCA1 is associated with triple-negative breast cancer response in which a person cannot be fully treated with some drugs like which does not respond to hormonal trastuzumab and hormonal treatments.
Analyze a woman’s risk of dying of cancer if she carries a mutated BRC1 gene.
The risk of a woman to die with cancer due to with BRC1 mutation are quite high. This is because 18 percent of the women which develop breast cancer due to BRC1 mutation die while only 2.8 percent of the women who develop breast cancer due to BRC2 mutations die. This indicates substantially higher risk of BRC1 patients of dying as compared to BRC2 patients.
How do heredity and inheritance relate to the data presented in these charts?
Please add charts.
What data would you need to see in order to draw conclusions about the effectiveness of preventive surgeries?
There are several preventive surgeries used to prevent the chances of breast cancer in women. However, the genetic history of a person and her family’s genetic history is important to see before drawing some effective preventive surgery.
What does the age at diagnosis tell you about the mutation?
By looking at different cases of breast cancers and analyzing the data of different countries, we noticed that, the onset of disease takes several years because it is a genetic level mutation and the onset of mutation starts in earlier years of a woman’s life however she fully becomes a victim and notices it in late years of her life. This is why it cannot be easily diagnosed in early years even it is present there.
Explain how breast-cancer genes are still present in the population, despite cancer-related surgeries and deaths.
The genes responsible for breast cancer such as BRC1 and BRC2 are inherited from parents to offspring in a dominant fashion which means only one copy of gene is enough for the onset of the disease. Also because the disease is caused due to genetic level mutations, even if the doctors remove the cancers through surgeries they are not able to remove each and every affected gene from an organism which is passed from parents to offspring and still present in population.
Hope it helps!
Changes in the DNA sequence of any organism are known as mutations. These DNA sequences contain genes that determine all of an organism's characteristics, such as height, weight, eye color, and when a specific protein will be created in the body. Everything is governed by little strands of DNA.
Any alteration in an organism's DNA sequence can be fatal, for example, in the case of malignant mutations that cause proteins that control cell division to malfunction. Other mutations are simply passed down to the offspring, resulting in genetic differences. This is how mutations cause changes in an organism's genetic code.BRC1 and BRC2 mutations are often exceedingly hazardous since they enhance a woman's chances of developing breast cancer.BRC1 mutations are more harmful than BRC2 mutations because BRC1 mutations are detected in a higher percentage of individuals. BRCA1 is linked to triple-negative breast cancer, a type of cancer that can't be properly treated with some medications and doesn't react to hormonal therapy.Because of the BRC1 mutation, a woman's chances of dying from cancer are relatively high. This is owing to the fact that 18% of women who acquire breast cancer as a result of a BRC1 mutation die, whereas only 2.8 percent of women who develop breast cancer as a result of a BRC2 mutation die. This suggests that BRC1 patients have a significantly higher probability of dying than BRC2 patients.In order to reduce the risk of breast cancer in women, numerous preventive operations are performed. However, a person's genetic history, as well as the genetic history of her family, must be examined before deciding on an effective preventive surgery.According to data from various countries, the development of disease takes several years because it is a genetic level mutation that begins in a woman's early years of life but she completely becomes a victim and notices it in her later years. This is why, even if it is present in the early years, it is difficult to diagnose.Breast cancer genes such as BRC1 and BRC2 are passed in a dominant manner from parents to offspring, meaning that only one copy of the gene is required for disease initiation. Also, because the disease is caused by genetic abnormalities, even if surgeons surgically remove the malignancies, they will not be able to eliminate every afflicted gene from an organism that is handed down from parents to offspring and is still present in the community.Thus, breast cancer is caused by genetic abnormalities of BRC1 and BRC2 genes.
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How does an allele cause a trait in an organism?
O
A. The allele is a code to form a type of gene.
O
B. The allele is used during transcription to make DNA.
O
C. The allele is used by proteins to create chromosomes.
O
D. The allele causes a certain type of protein to form.
Answer:
D. The allele causes a certain type of protein to form.
An allele, a version of a gene, influences an organism's traits by coding for a specific protein. This protein is formed through a process of transcription and translation, resulting in a trait. Different alleles produce variations in proteins, contributing to different traits.
Explanation:An allele is a version of a gene. Every organism inherits two alleles for each gene, one from each parent. These alleles may be the same (homozygous) or different (heterozygous). The trait that an organism expresses depends on the protein that is made as a result of transcription and translation of the allele. The correct answer in the given options would be 'The allele causes a certain type of protein to form'.
The process begins with the transcription, where the DNA sequence of the allele is copied into mRNA. This mRNA is then translated into a chain of amino acids, which folds to form a protein. It is this protein that is responsible for the trait. Different alleles produce variations in the protein, which result in different traits.
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How does natural selection lead to evolution? A. Every generation is a new species
B. Small changes add up over time
C. The fittest organism cannot reproduce
D. New species learned the behavior of old species
Answer:
B. Small changes add up over time
Explanation:
Evolution is a pretty slow process. Each successful member of a new generation receives small changes in their DNA that helped them to survive, whether it's an existing trait that happened to be more helpful or a mutation. Over time, these helpful traits gradually add up. Eventually, the original species has been completely replaced by a new, improved version, that can look significantly (take horses for example, the very first horses were about the size of rabbits and had individual toes instead of hooves. Over time, more beneficial traits added up, and the result is the horse we know today.) While the traits of the original species might have been the most beneficial to them, as environments and other factors change, the species must change with it to survive. You could compare this to computers. The update you downloaded today might be the best thing to protect your computer now, but that same update won't be nearly as effective a year from now.
I hope this helps!
The natural selection lead to evolution of new species where Small changes add up over time where the small changes that are being add on with the change in them and the type of situations that are present.
What is the theory of selection ?The theory of selection says that every organism who is fit to survive and able to adapt to the environment they are living on is selected by the nature.
The small changes in the structure, for example let us talk about the spinal cord where the structure was continuously being replaced by with the passing of time and later on it got correct, The example is totally illustrating the structure of spinal cord alteration with time.
The type of culture and the type of living style on is living in with the passing of time it would change as well when the time and values together get so valued such that the priorities change with time.
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Now that you have reviewed both immunity and the spread of disease, write an investigative question that you would like to answer by doing an experiment. Use the format “What is the effect of X on Y?”
Answer:
What is the effect of immunity on the spread of disease?
Explanation:
It links both immunity and the spread of disease into a question that suggests an independent and dependment variable.
Answer: What is the effect of immunity on the rate at which a disease spreads?
Name the animal with only bottom teeth.
Giraffe is the animal with bottom teeth.
Answer:
Giraffes only have bottom teeth.
Which statement best describes energy of an ecosystem?
The amount of energy entering an ecosystem from the Sun is equal to the amount lost as heat.
The amount of energy entering an ecosystem from the Sun is equal to the amount used by organisms.
The amount of energy entering an ecosystem from the Sun is equal to the amount used by organisms plus the amount lost as heat.
The amount of energy entering an ecosystem from the sun does not transfer from organism to organism.
Answer:
The amount of energy entering an ecosystem from the Sun is equal to the amount used by organisms plus the amount lost as heat.
Explanation:
An ecosystem is a basically a community in which several living organisms live together in a certain area and share food and other living resources.
When we talk about prime source of energy for any ecosystem it is considered to be the, Sun. Sun is the source of energy for all living organisms and the energy of sunlight is primarily used by green plants to prepare food through the process of photosynthesis. In this process sunlight is fixed into energy compounds like ATP. And once the green plants are eaten by other higher animals like goat, some of the energy is wasted as heat and other is transferred into the body of next organism. Then when the goat is eaten by higher animal like lion, some of the energy is wasted as heat and other is transferred into the body of next organism. This process goes on.
In this way, the energy from sun is transferred from herbivores like goat to carnivores like lion etc. Some energy is used by the higher organisms while the other is lost as heat during energy transfer process.
Therefore, mentioned option, "The amount of energy entering an ecosystem from the Sun is equal to the amount used by organisms plus the amount lost as heat" is correct option.
Answer:
The amount of energy entering an ecosystem from the Sun is equal to the amount used by organisms plus the amount lost as heat.
Explanation:
The classification group that is made up of related species is the _____
Answer:
Genus
Explanation:
In taxonomy, genus refers to a group of organisms that include one or more species that are closely related to each other. Organisms that are in the same genus share common features, characteristics, and/or traits but are not quite the same species. If a genus has only one species under it, it is called monotypic, but if there is more than one (which could reach more than 100 in some organisms!) it is called polytypic.
Right under genus would be species in biological organization. When naming organisms using binomial nomenclature, genus is first named, then species.
Explain how scientific knowledge can help people make decisions that will benefit society
HELP!! Seasonal variations in ocean temperatures can impact the populations of living organisms in the ocean. How would a phytoplankton population be affected by these changes?
Answer:
Increased sunlight and increased nutrients will increase phytoplankton populations
Explanation:
The phytoplankton is a producer. This means that it is able to produce its own sugars, or rather its own food, by using its environment. In order to do so, the phytoplankton performs the process of photosynthesis, and in order for this process to be performed, the phytoplankton needs sunlight. Increased sunlight will mean that the phytoplankton will be able to perform photosynthesis more frequently and more efficiently, which will result in increase of its population. Also, the nutrients play a role in the population of phytoplankton, as they provide crucial elements that are needed for the photosynthesis process, so the phytoplankton gets what it needs from them, so the more nutrients there are, the more phytoplankton there will be.
Helppppppppppppppppppppppppppppppppppppppppp me plz!!
??? i can't see it clear sorry
is sometimes called secretion endocytosis. exocystosis
Answer:
Exocytosis
Explanation:
exo meaning out, cyt meaning cell, so the whole word literally means cell out, or stuff taken out of the cell. This is also what secretion means
Can someone help me with question 3?
Answer:
Explanation:
Do you want what is the seedling doing during the lag period when nothing seems to be happening?
If that is so, lots is happening.
The seed is developing a root system.The seed is in the beginning stages of germination. Very small leaves and very few in number are beginning to be seen.The plant is reaching towards the sunlight (called phototropism). It is not growing roots above ground and it is not developing its mass and height below ground. It is the miracle of how plants grow.Global warming will increase temperatures through the northern United
States. What will most likely be the effect on wildlife in this region?
A. They will have more access to fresh water.
B. They will have more access to food.
C. They will die unless they are able to move to cooler areas.
D. They will be healthier in the warmer weather.
Answer: C
Explanation: C is the only negative effect of global warming. They must move to a different location or die.
The correct answer is C. They will die unless they are able to move to cooler areas.
Explanation:
The global warming phenomenon implies a long-term change in temperature all around the world. This change in temperature represents an important thread for ecosystems as biological processes and natural cycles are closely linked to temperatures. Indeed the rise in temperatures has caused changes in migrations, pollination, and availability of resources which leads to the extinction of species that cannot adapt to warmer climates. For example, in oceans higher temperatures had caused corals and some fish to die as they are adapted to only certain temperatures. Therefore, the most likely effect on wildlife due to global warming in the U.S. and other regions is that animals, plants and other organisms will die unless they move to cooler areas (Option C).
Hey scientist wonders what would happen if all the trees in the Amazon rainforest were cut down. Which of the following is the most ethical reasons for running a simulation rather than cutting down all the trees in the rainforest?
A. There would be no place to dispose of the trees once they were cut down
B. The natural world should be disturbed as little as possible in an experiment
C. Travel to and from the Amazon might be too expensive for a scientist
D. It might be too expensive to buy enough chainsaws for the experiment
Answer:
B. The natural world should be disturbed as little as possible in an experiment
Explanation:
In doing any type of experiment that includes the natural world, the best and most ethical way to do it is to make as little disturbance to it as possible. The reasons for this are many. One of them is that if the experiment creates big disturbance to the natural world, it will create lot of damage to it, with many species becoming endangered or extinct. Also, the natural world is needed, both for the humans and for having proper living conditions for the other organisms. The ethical part also plays big role, as to perform an experiment with the cost of harming millions of organisms is very cruel and irresponsible, plus there's not a single positive in it.
The natural world should be disturbed as little as possible in an experiment. The correct option is B.
The scientist respects the value of the natural environment and seeks to minimise any detrimental effects on the rainforest ecosystem by opting to conduct a simulation rather than actually felling the trees.
The results of experiments involving damaging activities may have long-lasting effects on ecosystem processes, indigenous groups' livelihoods, and biodiversity.
Giving the rainforest top priority is consistent with moral principles of environmental sustainability and conservation.
Thus, the correct option is B.
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Which of these could increase average global temperatures?
Answer:
Burning fossil fuels, over harvesting of petroleum.
Explanation:
If you cold attach the answers, I can give you a better answer.
The increase average global temperatures D Setting more factories . Therefore , D Setting more factories is correct.
The primary mechanism through which this occurs is the emission of greenhouse gases (GHGs) during industrial processes.
Factories often burn fossil fuels, such as coal, oil, and natural gas, for energy. Combustion of these fuels releases carbon dioxide (CO2), a major greenhouse gas, into the atmosphere.
Additionally, industrial activities may release other GHGs like methane (CH4) and nitrous oxide (N2O).
These gases trap heat in the Earth's atmosphere, leading to a gradual warming known as global warming.
Furthermore, some industrial processes release particulate matter and aerosols into the atmosphere.
While these particles can have a cooling effect by reflecting sunlight back into space, their impact is generally outweighed by the warming effect of greenhouse gas emissions.
The industrial sector also contributes to deforestation for resource extraction and infrastructure development.
Deforestation reduces the number of trees, which act as carbon sinks by absorbing CO2 during photosynthesis.
The loss of these carbon sinks intensifies the greenhouse effect.
Efforts to mitigate the impact of industrial activities on global temperature involve adopting cleaner technologies, improving energy efficiency, and transitioning to renewable energy sources.
Recognizing and addressing the environmental consequences of industrialization are crucial steps in mitigating climate change and promoting sustainable development.
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Question
Which of the following activities can increase the average global temperature of Earth?
A. Burning of fossil fuels
B. Planting of trees
C. Increased number of glaciers
D. Setting more factories
The way crops are changed by human interference is called
Farming
Harvesting
Domestication
Answer:
I think the answer is farming, plz lmk how it goes
Evolution of a species acts on the
of the species, not the
DONE
Answer:
population.
individuals.
Explanation:
Evolution of a species acts on the population of the species, not the individuals. The evolution occurs due to genetic variations.
What is Evolution?Evolution is the process of change in the heritable characteristics of the biological populations over the period of successive generations. The characteristics of evolution are the expressions of genes, which are then passed on from the parents to offspring during the reproduction process.
Factors which affect evolution include the environment and predation pressures which can have different effects on the ways in which the species are exposed to them evolve. Evolution shows the three main types of evolution including divergent, convergent, and parallel evolution.
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Taxonomists study the way organisms grow and develop before they are_____
Answer:
Born
Explanation:
Taxonomists study the way organisms grow and develop before they are born.
Final answer:
Taxonomists study organism growth and development prior to the naming and classification process, using the hierarchical taxonomy or Linnaean system, which groups organisms into nested categories from domains to species, based on shared characteristics and evolutionary relationships.
Explanation:
Taxonomists study the way organisms grow and develop before they are named and classified. Taxonomy, literally meaning "arrangement law", is the science of classifying organisms to construct internationally shared classification systems. This involves grouping species in a hierarchical system from the most inclusive to the most specific levels—a method initially developed by Carl Linnaeus. Within the taxonomic classification system, organisms are first divided into three large groups called domains: Bacteria, Archaea, and Eukarya. Subsequent categories of increasing specificity include kingdom, phylum, class, order, family, genus, and species. This hierarchical structure allows scientists to place each organism into nested groupings based on shared characteristics and evolutionary relationships. It is a dynamic system that changes as new species and data are discovered.
Speed is a complex skill that requires the communication of which systems to function?
Select all that apply.
skeletal system
circulatory system
respiratory system
muscular system
Speed requires the interaction of the muscular, skeletal, nervous, and circulatory systems to execute coordinated and efficient movement.
Speed is a complex skill that requires the coordination of multiple body systems to function effectively. Specifically, speed involves the muscular system and the skeletal system working together to produce movement. The nervous system plays a critical role by sending signals to muscles to contract and coordinate actions, and the circulatory system supports these functions by supplying oxygen and nutrients to muscles and removing waste products. While the respiratory system is not directly mentioned in the original answer choices, it is also critical to speed as it provides the oxygen necessary for muscle function. Therefore, the systems that must communicate for speed are:
Muscular systemSkeletal systemNervous systemCirculatory systemWhich statement describes the term carrying capacity as it relates to a prairie
dog population?
Answer:
the statement that would best describe the term carrying capacity relating to prairie dog population would be "the maximum prairie dog population size, that a particular area can sustain over time".
It is the maximum capacity that a particular area can sustain in the presence of certain amount of fixed resources like food and habitat.
Answer:
it is .. the maximum number of prairie dogs that an area can support
Explanation:
As longitudinal wave travel particles in the medium are pushed together and then pulled apart. we call this
Answer:
compression and rarefaction
Explanation:
This kind of wave is called a longitudinal wave and an example of such a wave is a sound wave. The center of compression can be analogous to the top of a crest of a transverse wave while the center of the rarefaction would be analogous to the bottom of the trough of a transverse wave.
Answer:
compression
Explanation:
The part of a longitudinal wave where the particles are more closely pushed together is called a compression.
Which element is responsible for the color change in the benedicts test
Answer:
Copper (Cu2+)
Explanation:
Benedict's test is used to test for aldehydes and ketones. The cupric compound (Cu2+) from the Benedict's reagent reacts and is reduced by the aldehydes to the coprous compound (Cu+) forming a red color.
Pinnae are found in.
(a) Frog (b) Gasialis
(c) Rabbit
(d) Crow
Answer:
Pinnae is the external part of the ear in humans and other mammals. So it's C Rabbit.
Explanation:
Homologous structures
A. always have the same function.
B. are found in organisms of the same species.
C. always have a different function.
D. are found in organisms of different species.
Answer: D is the correct answer!
Explanation:
Answer: D are found in organisms of different species.
Explanation:) edge 2022
Proteins, which are compounds made of nitrogen-rich amino acids, create waste products in the body of animals that must be eliminated. Which toxic compound is the primary concern of animal waste systems?
A. Nitrogen
B. Ammonium
C. Ammonia
D. Urea
Answer:
C
Explanation:
Ammonia is toxic to the body. Animals that live in water excrete their waste in ammonia (aqueous) form because it is less toxic when diluted. However, land animals need to convert the ammonia to a less toxic product such as urea before excretion. Ammonia is formed through deamination of amino acid.
ANSWER:
The correct option is C: Ammonia. Ammonia is a toxic and waste compound that is of concern.
EXPLANATION:
Proteins contain nitrogen and during the catabolism of nitrogen containing compounds, hydrogen, carbon and oxygen are extracted and stored in the "form of fats and carbohydrates "by the body.
The excess nitrogen however gets excreted from the body. The nitrogenous wastes form "toxic ammonia" which raises the level of pH of the body fluids. The toxic ammonia must be converted to "uric acid or urea" which is a non-toxic form.Why do areas with a lot of vegetation have a cooler average temperature than similar areas with concrete?
Final answer:
Vegetation helps to regulate regional climates through evapotranspiration, which cools the air, whereas concrete in urban areas absorbs and retains more heat. This contributes to urban heat islands, where cities are warmer than rural areas. Trees and plants mitigate these temperature differences by providing shade and releasing water vapor.
Explanation:
Areas with a lot of vegetation tend to have a cooler average temperature compared to similar areas with concrete due to several factors involving energy balance and water cycles. Vegetation plays an essential role in regulating regional climates by influencing the water cycle through processes like evapotranspiration, where plants absorb water from the soil and release it as water vapor, cooling the air. Urban heat island is a phenomenon where urban areas, having a concentration of human activities, industry, transportation, and lots of impervious surfaces like concrete, absorb more solar energy, making them significantly warmer than the surrounding rural areas with more vegetation.
In rural areas, the abundance of vegetation allows more water to be available for evaporation, contributing to cooling. Urban areas with concrete have less infiltrated water and therefore, less moisture available for evaporative cooling. Concrete also has a lower heat capacity compared to water, allowing it to heat up and cool down much faster, which exacerbates the temperature differences. Lastly, plants not only absorb more heat than bare soil due to their albedos but also help mitigate the urban heat island effect by providing shade and releasing water vapor into the atmosphere, further cooling the surrounding air and enhancing comfort.