Answer:
D
Explanation:
Humans are considered to have intrinsic dignity that can't be violated and is even protected by laws of human rights. Therefore, even when conducting experiments that will involve human subjected, it is expected by ethical standards of research are considered before being implemented. For example it is important that the experiment does not subject humans to any form of embarrassment, bodily harm, and psychological harm.
Answer:
its not D
Explanation:
wrong answer on gradpoint
Can someone fill in all the words
Paragraph
2. In an atomic model, what particles are found inside the nucleus of an atom?
Answer:
The protons and the neutrons are found in the nucleus of an atom.
Explanation:
Atoms are best described as the smallest unit of any matter.
Protons can be described as part of an atom which carries a positive charge. The protons are enclosed in the nucleus of the atom.
The neutron is the part of the atom that carries zero charge. The neutron is also enclosed in the nucleus of the atom.
The electrons can be described as the part of an atom that carries a negative charge. The electrons move around the nucleus in orbits.
Can individuals organism envolve?
Individual organisms do not evolve; instead, evolution is a process that occurs across generations within a population. While individual organisms can adapt to their environment, these adaptations do not equate to evolution. Examples of evolution include the genetic changes leading from pre-humans to modern humans.
Can an individual organism evolve? No, an individual organism itself cannot evolve. Evolution is a process that occurs over many generations within a population, not within the lifespan of a single organism.
When we talk about evolution, we refer to the genetic changes that accumulate in a population over time. These changes can lead to new species, but they do not alter the genetic makeup of an individual once it is born.
Examples of Evolution
For instance, consider the transformation from pre-humans to modern humans (Homo sapiens). This was not a change that occurred in a single individual but rather a series of genetic adaptations across countless generations.
Adaptations vs. Evolution
It's important to differentiate between an organism adapting to its environment and evolution. An individual organism can adapt by developing better skills for survival, but this adaptation is not the same as evolution. Evolution requires the genetic changes that happen across multiple generations, leading to the emergence of new species.
Organisms interact with their environment, which can influence their success and survival.
Populations, not individuals, evolve over time through the accumulation of genetic changes.
Examples of evolution include the transition from dinosaurs to birds and pre-humans to modern humans.
How is a polar bear adapted to living in cold polar areas?
Answer:
How has a polar bear adapted to its Arctic environment? Their white fur helps them blend in with the snow and ice. A polar bear has a layer of fat under its skin which helps it stay warm. It also has a thick layer of fur.Inhabiting the ice and sea of the Arctic, polar bears are well-equipped for survival in a harsh environment. Two coats of fur and a thick layer of blubber help insulate the polar bear's body from the cold, keeping its temperature at an even 37° C (98.6° F).
Polar bears have thick fur, a layer of blubber, and a white coat that helps them survive in polar regions. These features provide insulation, store energy, and offer camouflage. Their ability to generate heat further aids in maintaining their internal temperature.
Adaptations of Polar Bears to Cold Climates
Polar bears (Ursus maritimus) have several adaptations that allow them to thrive in extremely cold polar areas. These adaptations include:
Thick fur: Polar bears have a dense layer of fur that traps heat close to their bodies, providing insulation against the cold. The outer layer of fur is waterproof, preventing them from getting wet and losing body heat.Layer of blubber: Underneath their skin, polar bears have a thick layer of fat known as blubber. This blubber not only stores energy but also provides additional insulation to keep them warm in the icy environment.Heat generation: Like all mammals, polar bears generate heat through metabolic processes to maintain a stable internal temperature, essential for surviving in cold climates.White fur: Their white fur helps them blend into their snowy surroundings, serving as camouflage to protect them from predators and assist in hunting prey.Thanks to these incredible adaptations, polar bears are well-equipped to survive and thrive in their Arctic ecosystem.
Look at the food web . What does the deer get energy from
Answer:
The grass
btw there's no pic of the food web
Some argue that wind power should be used more than it is now. What
argument could someone make against the use of wind power?
O
A. It produces toxic chemicals when used.
O
B. It contributes to global warming.
C. It can only be produced in windy areas.
O
D. It generates greenhouse gases.
SUB
+ PREVIOUS
Answer:
c. it can only be produced in windy areas.
Explanation:
A molecule of a complex carbohydrate is made of 12 carbon atoms. Calculate the numbers of hydrogen and oxygen atoms in the molecule.
In a complex carbohydrate molecule, the ratio of carbon to hydrogen to oxygen is 1:2:1. Therefore, if there are 12 carbon atoms, there will be 24 hydrogen atoms and 12 oxygen atoms.
Explanation:
Given that carbohydrates can be represented by the stoichiometric formula (CH₂O)n, where n is the number of carbons in the molecule, the ratio of carbon to hydrogen to oxygen in carbohydrate molecules is 1:2:1. Thus, if a molecule of a complex carbohydrate is made of 12 carbon atoms, the number of hydrogen atoms will be 2*12 = 24, and the number of oxygen atoms will be 1*12 = 12. This is because for every one carbon atom, there are two hydrogen atoms and one oxygen atom.
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Energy conversion within an animal cell
would be severely limited by removal of the
cell's -
A) Mitochondria
B) Chloroplasts
C) Plastids
D) Lysosomes
What would happen if enzymes didn't regulate chemical traffic through pathways of metabolism?
Answer:
Metabolic processes will become uncontrolled.
Explanation:
Enzymes play very essential role in metabolic processes. They transfer electrons from one molecule to another and assist as cell in regulating the extent of anabolic and catabolic processes taking place with in a cell. Thus, if enzymes stops functioning or stop regulating the chemical traffic through pathways of metabolism then the metabolic processes will either not start and in case if they already started, then will not inhibit and remain in the stage of continuation.
What strand of mRNA would be produced from the strand of DNA shown
below?
GCATTA
O A. GCATTA
O B. CGT AAT
O C. CGT UUT
O D. CGU AAU
Answer:
D
Explanation:
Since Adenine (A) pairs with Uracil (U) in RNA, Thymine(T) pairs with Adenine but Adenine doesn't pair with Thymine in RNA and Guanine(G) and Cytosine(C) then the nitrogenous pairs would be like this.
GCATTA
CGUAAU
The corresponding mRNA strand would be: CGUAAU. Therefore, option (D) is correct.
What is mRNA?mRNA stands for messenger RNA. It is a type of RNA molecule that carries genetic information from DNA to the ribosomes, where it serves as a template for protein synthesis. mRNA is transcribed from DNA during the process of gene expression and is crucial for protein production in cells.
To determine the strand of mRNA produced from a given strand of DNA, we need to apply the complementary base pairing rules. In DNA, the bases are adenine (A), thymine (T), cytosine (C), and guanine (G). In RNA, however, thymine is replaced by uracil (U). The complementary base pairs are A-T and G-C in DNA, and A-U and G-C in RNA.
Given the DNA strand: GCATTA
To transcribe it into mRNA, we replace each DNA base with its complementary RNA base:
G -> C
C -> G
A -> U
T -> A
T -> A
Therefore, the corresponding mRNA strand would be: CGUAAU
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for these reasons blood is an example of which type of mixture
Answer:
heterogeneous
Explanation:
it's a heterogeneous mixture called a colloid.
Explain how energy moves through a food chain and a food web.
Energy begins with the sun and is captured by plants via photosynthesis. It is then passed up through different levels of consumers in a food chain, from herbivores to carnivores. A food web shows a more complex, interconnected system of energy transfer, with energy lost as heat at each level.
Explanation:Energy in ecosystems is transferred through food chains and food webs. It all starts with energy from the sun, which is harnessed by producers (like plants) through the process of photosynthesis. These producers are consumed by primary consumers (herbivores), which in turn are consumed by secondary consumers (carnivores). Each layer of consumption represents a level in the food chain.
A food web, on the other hand, is a more complex representation of multiple food chains that intersect. These interconnections demonstrate how energy moves in a less linear, more interconnected way. The energy is lost as heat up the food chain or web, thus the higher the level, the less energy is available.
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“Energy needed by the body is transformed in the cells” True or false?
Answer:
True!
Explanation:
During cellular respiration, glucose and oxygen are converted into carbon dioxide and water, and the energy is transferred to ATP. :)
Answer:
Cells do not use the energy from oxidation reactions as soon as it is released. Instead, they convert it into small, energy-rich molecules such as ATP and nicotinamide adenine dinucleotide (NADH)
Explanation:
What is the role of Carbon Dioxide in photosynthesis
for plants, Instead of breathing oxygen, they suck in carbon dioxide and release oxygen in the atmosphere.
Science is a form of inquiry because scientists trying to understand the world around them start by a forming conclusions. b collecting data. c asking questions. d designing experiments.
Answer:
D. Designing experiments
Explanation:
Scientists get understanding of the world by performing experiments. Direct conclusion without any data is considered as irrelevant. The scientists design the protocol of the experiment and performs it accordingly to get the data and then infer the result from it.
The experiments are designed on the basis of the hypothesis being stated. The hypothesis is validated by the experiments and has to be altered or withdrawn if the results do not support the hypothesis.
5. The energy for the water cycle comes from
A the sun
B the ocean
C Earth's core
D the atmosphere
Answer:
A. the sun
Explanation:
Answer:
A. the sun
Explanation:
Water cycle -
Water cycle represents that , the evaporation process of the water from the surface of the Earth , and as it rises in to the atmosphere and then condense down and comes back to the surface of Earth , in the form of rain , snow fall .
The very first step , i.e. , the evaporation of the water , is done with the help of the energy of sun .
Because , sun provide the energy to convert the water to water vapor .
Which of the following locations would most likely have the least wind erosion?
Sahara Desert
Amazon Jungle
Gobi Desert
Rocky Mountains
Answer:
Amazon Jungle
Explanation:
The locations would most likely have the least wind erosion is amazon Jungle.
What is Amazon Jungle?The biggest tropical rainforest in the world, the Amazon is still renowned because of its biodiversity as spans much of northeastern Brazil as well as Colombia, Peru, and other South American nations.
What is erosion?The method of separating soil, rock, and dissolving material from one area on the Earth's crust and moving it to another, where it would be deposited, is often known as erosion.
Therefore, the locations would most likely have the least wind erosion is amazon Jungle.
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The atomic mass of an element is equal to the:
atomic number
o number of protons
number of protons and neutrons
o mass of protons, neutrons, and electrons
The answer should be the third option "number of protons and neutrons." The atomic mass of a element is equal to the amount of protons, and neutrons added together in that element. So for example if we are trying to find the atomic mass of hydrogen you would add the total amount of protons and neutrons together to find it's mass although it doesn't equal the exact amount of it's mass but it's close.
Hope this helps.
Complimentary DNA for atgaaccattcagtatgg
Answer:
tacttggtaagtcatacc
Explanation:
Since A (adenine) is complementary (bonds) only with T (thymine) and vice versa; and C (cytosine) with G (guanine).
What will happen when the membrane and transporting substance meet?
Answer:
Water passes through the membrane in a diffusion process called osmosis. During active transport, energy is expended to assist material movement across the membrane in a direction against their concentration gradient. Active transport may take place with the help of protein pumps or through the use of vesicles.
Explanation:
Explain why it's unknown which of two alleles an offspring will obtain from its biological mother or father for a given characteristic.
Answer:
Each parent organism contributes one copy of its alleles in a seemingly random fashion to its offspring, as meiosis to create gametes (egg or sperm cells) reduces the number of genes by half. Therefore, each gamete contributes only one allele.
Explanation:
During meiosis process each parent contribute haploid gamete with an alleles for a specific gene in a random fashion to its offspring, Therefore, each gamete contributes only one allele.
What is allele ?Alleles are the forms of a gene which carry a trait, it is present in a pair in a specific location on a particular chromosome and control the same trait.
Alleles of an organism makes the genotype.
If a pair of alleles are similar for a trait, then the genotype is homozygous.
If the pair of alleles are different for a trait, then the genotype of the organism called as heterozygous.
Similarly in a heterozygous genotype, the allele which express its character called dominant allele and the other one which wont express called recessive allele.
For example, the human blood group ABO.
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The question was incomplete. The probable question was
1. Explain why it's unknown which of two alleles an offspring will obtain from its biological mother or father for a given characteristic. 2. Reginald Punnett sought to apply the insights obtained by Mendel to explain the laws of inheritance in a structured fashion. What's a Punnett square and how is it used? 3. You're conducting a science experiment crossing two different purebred mouse strains, which each contain a different variation of the same gene, for two generations. What do you expect to see as the phenotypes of the first generation? The second generation? 4. How closely do Mendel's insights into dominant and recessive traits match up with the ratios that Punnett calculated in his Punnett squares?
Is a tomato plant a single cell or multicellular? Explain with strong evidence It is for my science class
Answer: Tomato plant is a multicellular organism.
Explanation: A multicellular is a organism composed by many types of cells or cell lines. A tomato plant is composed not only by million of cells but by many types of them in the different tissues and organs, for example, leaves have epidermic cells that protect them, stomata cells for gas exchange, chlorenchyme cells that have chloroplasts to do photosynthesis, phloem and xylem cells to transport fluids, etc.
Cells transport molecules into the cell in many different ways. One method is through endocytosis, shown in the model. In endocytosis, the cell brings specific molecules it needs, including fluid, into the cell. Why does the structure of the plasma membrane make this type of transport necessary for fluids?
Answer:
This is because fluids have a polar nature, so they couldn´t cross the lipidic bilayer that constitutes the plasma membrane
Explanation:
Plasma membranes are contituted by lipid bilayers. These kind of compounds are hidrophobic (they reject water) and don´t permit the freely passage of hidriphilic molecules that can disolve in water, constituing fluids. Because of that cells developed transport mechanism like endocytosis.
Answer:
While the heads of the phospholipid structure attract water, the tails are hydrophobic. The model shows how the hydrophilic section folds around the fluid molecules to bring them into the cell so they don’t need to pass through the hydrophobic tails.
Pros and cons of saving endangered species
Answer:
The conservation of endangered species is important for humans as well. A well-balanced ecosystem purifies the environment, giving us clean air to breathe, a healthy water system to support diverse marine life, and arable land for agricultural production.
Explanation:
The health of an ecosystem is maintained by its plants and animals. When species become endangered, it is a sign of an ecosystem's imbalance. This balance is difficult to maintain: the loss of one species often triggers the loss of others. ... By saving endangered species, we are ultimately saving ourselves.
The conservation of endangered species is important for maintaining biodiversity and ecosystem balance, with public support enabling increased conservation efforts. However, there are concerns about the allocation of resources, effects on ecosystems, ethical considerations, and public perception related to de-extinction efforts. Finding a balance in conservation resources is essential to ensure the most effective protection of biodiversity.
The conservation of endangered species serves crucial roles in maintaining biodiversity and the balance of ecosystems. Efforts to protect endangered species with large territories, like the northern spotted owl, Strix occidentalis caurina, often result in the protection of other species within the same ecosystem, improving the efficiency of conservation resources. Additionally, certain ecosystems with high concentrations of endangered species, such as the Florida scrub or Hawaiian rainforests, benefit almost equivalently from species-oriented conservation and ecosystem conservation efforts. Public support for protecting charismatic species like the whooping crane (Grus americana), the giant panda (Ailurapoda melanoleuca), and the golden lion tamarin (Leontopithacus rosalia) is high, which can translate to increased funding and attention to conservation efforts.
However, there are cons to focus exclusively on endangered species conservation. The argument against de-extinction efforts is that they are expensive, technically challenging, and may divert necessary resources from protecting species currently facing extinction. Concerns also arise about the potential impact of resurrected species on ecosystems, as they may not fulfil the same roles or exhibit the same behaviours as their pre-extinct counterparts, possibly introducing new threats. Ethical questions surround the concept of humans playing god with the natural order. The potential for public desensitization to the extinction crisis is another critique: if people believe that extinct species can simply be revived, the urgency to protect species might diminish.
In conclusion, while the conservation of endangered species has many benefits, including ecosystem protection, there are debates regarding resource allocation, especially concerning de-extinction efforts. Conservationists face the challenge of finding a balance between preserving endangered species and ensuring the efforts do not outweigh the potential benefits to biodiversity and ecosystems.
!!ASAP!! Please !!ASAP!!
Somebody please help!! You don't have to do all of them but if you can please do!!
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How are each of the properties important to life?
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-High specific heat
-Expansion upon freezing
-Versatility as a solvent
Specific heat means the heat required to raise the temperature of the unit mass of a given substance by a given amount (usually one degree).. The specific heat of water is high (1 calorie/gm/°C). This property ensures slow heating of water; maintain constant temperature of living organisms and environment.
Expansion upon freezing is what causes ice to be less dense as a solid than as a liquid. This means that ice floats in liquid water. Hydrogen bonding is the source of this rare property. Water freezes when its molecules are no longer moving around enough to break their hydrogen bonds.even though it doesn't seem like a very important property, but the fitness of the environment would drastically change if water were less dense than ice. All of bodies of water would eventually freeze over if ice did sink, making life on Earth impossible.
Versatility as a solvent Water is called the "universal solvent" because it dissolves more substances than any other known liquid. This is important to every living thing on earth. It means that wherever water goes, either through the ground or through our bodies, it takes along valuable chemicals, minerals, and nutrients.
A solution that causes a cell to swell because of osmosis.
Answer:
Hypotonic solution
Explanation:
A hypotonic solution causes a cell to swell due to osmosis. This happens because water molecules move from the solution, where there's a lower solute concentration, into the cell, where there's a higher solute concentration. However, if the cell swells too much, it can burst, a condition called osmotic lysis.
Explanation:A solution that causes a cell to swell due to osmosis is called a hypotonic solution. Osmosis is the passive movement of water molecules, across a semi-permeable membrane, from an area of lower solute concentration to an area of higher solute concentration. In the case of a cell in a hypotonic solution, the concentration of solutes is higher inside the cell than in the surrounding solution. As a result, water moves into the cell, causing it to swell.
This process is an essential part of biology and it's vital for many biological processes, from the transport of nutrients to the balancing of water levels in organisms. Care must be taken, though, as too much swelling can lead to a condition called osmotic lysis, where the cell can burst.
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An animal cell has 2.0% salt concentration. It is placed into a solution with a .05% salt concentration.
Is the solution hypertonic, hypertonic, or isotonic?
Answer:
The solution is hypotonic
Explanation:
The salt concentration in the solution is lower (0.05%) than the concentration of salt inside the cell (2.0%)
Amino acids are processed by the liver.
Describe this process.
Regulation of amino acids
When amino acids are absorbed by liver cells a series of chemical reactions begins. ... The amine group is reduced to ammonia by the addition of a hydrogen atom. This process is called deamination. The non-nitrogenous portion of the molecule is converted to carbohydrates or fats.
DNA is copied, in a process called______, so that a cell's DNA can be passed on to its daughter cells.
A. gene editing
B. replication
C. gene expression
D. recombination
Answer:
Replication
Explanation:
When DNA is copied the process is called replication since the DNA is being copied.
Why is reproductive isolation required for speciation to occur? If populations can interbreed, they are considered one species. If populations can interbreed, they do not exchange genetic information. Reproductive isolation is not required for speciation because most different species can interbreed. Reproductive isolation is not required for speciation because species are not defined by reproduction.
Answer:
A. If populations can interbreed, they are considered one species.
Explanation:
The organisms of a species have the ability to interbreed with one another leading to the formation of an offspring. For speciation to occur, the organism have to get diverged and isolated.
In speciation, a hereditary species parts into at least two relative species that are hereditarily not quite the same as each other and can never again interbreed.
In Allopatric speciation, the species gets geographically parted from their parent and evolves accordingly while in sympatric speciation, evolution of species occur when it stays in the same place as their parent.
Answer:
A
Explanation:
a