Answer:
The answer is it needs four things to carry out photosynthesis chloroplast, light, water, and carbon dioxide.
I neeed heeeelllpppp onnnn 5
Answer:
A. A parasite is an organism that lives on or in another organism and takes its food.
What year did scientists announce they had broken the DNA code of humans?
Answer:
The Human Genome Project (HGP) was declared complete in April 2003.
Which factor increases with increased biodiversity?
O
O
A. Species extinction
B. Ecosystem stability
O
C. Artificial selection
O
D. Genetic drift
Answer:
Ecosystem Stability
Explanation:
Which is a reflex response?
A) putting on a coat when you see that it is snowing outside
B) pulling your foot away after stepping on a sharp object
C) laughing at a funny joke told by one of your classmates
D) eating a snack when your stomach growls from hunger
Help heh:)
Answer:
Pulling your foot away agter stepping on a sharp object
Answer:
B) Pulling your foot away after stepping on a sharp object
Explanation:
A boy exerts an average force of 65 n when he lifts a box 1.2 meters. How much work does he do?
Answer:
78 J
Explanation:
Work done = Force x distance
Work done = 65 x 1.2
Work done = 78 J
The work done by the boy is 78 J.
The given parameters;
force applied by the boy, F = 65 Ndistance traveled by the load, d = 1.2 mThe work done by the boy is the product of the applied force and the distance through the load is moved.
The work done by the boy is calculated as;
Work-done = Force x distance
Work-done =65 x 1.2
Work-done = 78 J.
Thus, the work done by the boy is 78 J.
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Why is the tidal range smaller duringa Neap tide than it is during a Spring Tide?
Answer:
Spring tides have higher high tides and lower low tides whereas neap tides have lower high tides and higher low tides. Hence, the range (difference in water level between high and low tide) is much larger in a spring tide than in a low tide.
Explanation:
Answer:
When this happens, the bulge of the ocean caused by the sun partially cancels out the bulge of the ocean caused by the moon. This produces moderate tides known as neap tides, meaning that high tides are a little lower and low tides are a little higher than average.
Explanation:
Hope this helps
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How could research on how genes control traits in orchids benefit our understanding of the human genome?
Answer:
All life is encoded through DNA. Every plant and animal has chromosomes in which genes that code for proteins are responsible for the organism's traits. For all species, the structure of core dogma is essentially the same, and studying the principle on orchids would also lead to the understanding of the human genome.
Research on how genes control traits in orchids benefit our understanding of the human genome as these give the idea of the genome. Traits are controlled by genes thus the various traits that are carried out by will be studied by the study of genes.
What is a gene ?It is the unit of inheritance which is carried out by the hereditary units that will be carried to the offspring from parents.
A study of genes will be helpful ion order to get the idea of the genome and the various characteristics are identified through the genetic studies and the various expressions are controlled by the genetic expressions.
The transmission of genes control the various traits from parents to child where the characteristics of the various traits carried by the children is passed on to child through the passing from parents.
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(PLSSS DO THIS ILL MARK BRAINLESS) Matter on Earth constantly cycles between the different reservoirs of the Earth system. As matter cycles through the Earth's reservoirs, what effect does this have on the total amount of matter on Earth?
A.
The total amount of matter on Earth constantly decreases.
B.
The total amount of matter on Earth is always changing.
C.
The total amount of matter on Earth constantly increases.
D.
The total amount of matter on Earth remains constant.
Answer:
The answer is D. The total amount of matter on Earth remains constant
Explanation:
I just did this and its the correct outcome :/ Hope it helps
Final answer:
The total amount of matter on Earth remains constant as it cycles through different environmental reservoirs, adhering to the law of conservation of matter.
Explanation:
Matter on Earth cycles through different reservoirs, such as the atmosphere, biosphere, hydrosphere, and geosphere. This cycling involves processes like photosynthesis, respiration, and decomposition. Despite the complex transformations and exchanges, the total amount of matter remains constant due to the law of conservation of matter. This principle states that matter is neither created nor destroyed within a closed system. Consequently, as matter cycles through the Earth's reservoirs, the effect on the total amount of matter is that it remains constant.
The correct answer to the question is:
D. The total amount of matter on Earth remains constant.How do human activities cause pathogens to move from one species to another? Give an example of cross-species transfer to help explain your answer?
The way in which humans are altering the envrionment is one of the main reasons why pathogens move from one species to another. The emergence of hemorrhagic fever in Argentina is an example of how human change to the environment has caused a cross-species transfer.
What does nitrogen fixation accomplish?
O
A. It allows bacteria to use nitrogen to grow.
O
B. It allows respiration to occur.
O
C CU
C. It allows plants to use nitrogen to grow.
O
D. It allows industry to mass-produce nitrogen.
Answer:
D. it allows plants to use nitrogen to grow
It allows plants to use nitrogen to grow. Therefore, option (C) is correct.
Nitrogen fixation turns atmospheric nitrogen gas (N2) into a form plants can use. Nitrogen-fixing bacteria, either soil-dwelling or symbiotic with plants, do this function.
Nitrogen fixation converts atmospheric nitrogen into ammonium ([tex]NH^{4+}[/tex]) or nitrate ([tex]NO^{3-}[/tex]) ions, which plants need to flourish. Nitrogen is necessary for plant protein, nucleic acid, and other synthesis. Plants would suffer nutritional deficits without fixed nitrogen.
Nitrogen fixation helps microorganisms develop by providing useable nitrogen for the ecosystem. Nitrogen fixation supports the nitrogen cycle, soil fertility, and agriculture by lowering the demand for synthetic nitrogen fertilizers. Therefore, option (C) is correct.
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Which element is a semiconductor?
germanium
aluminum
tin
iodine
Answer:
A. Germanium
Explanation:
Germanium is the only semi-conductor out of the four because aluminum and tin are conductors and iodine is an insulator.
The element that is a semiconductor is germanium. The correct option is A.
What are semiconductors?Semiconductors are substances with specialized electrical properties and can be used as the basis for computers and other electronic devices. Typically, it is a solid chemical element or compound that, in some circumstances, transmits electricity but not in others.
Germanium is an element of the periodic table that is grayish black, and it is hard and brittle. It is a semiconductor because it contains four electrons in the valence shell.
Examples of most commonly used semiconductors are Gallium arsenide, germanium, and silicon. Tin, iodine, and aluminum are not semiconductors. They are metals and nonmetals.
Thus, the correct option is A. germanium.
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can mutations occur in both DNA and RNA nucleic acids ?
Answer:
Yes
Explanation:
All mutations will be passed onto new cells through DNA replication, and all RNA made from that DNA will also have the mutation. If the mutation occurs in sperm or egg cells, those mutations will also be passed on to the organism's offspring.
Yes, both DNA and RNA nucleic acids may experience mutations. Mutations are modifications to the nucleotide sequence in a DNA or RNA molecule. Errors in the replication process, environmental variables, or other outside forces may be at blame for these modifications.
Both the coding sequence and the non-coding portions of DNA are susceptible to mutation. The structure and function of the protein can be impacted by variations in the amino acid sequence caused by mutations in the protein's coding sequence.
Changes in the gene's expression may be caused by mutations in the non-coding areas. Both the coding sequence and the non-coding portions of RNA are susceptible to mutation. Changes in the amino acid sequence of the protein can result from mutations in the coding sequence.
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Human development begins with a(n)
which is created when
join and thdas
first cell division takes place
Answer:
Zygote, the nucleus of male and female gametes join, mitosis
Explanation:
The human belongs to the animal kingdom which begins their life when the male and female gametes fuse through a process called Fertilization.
The process of fertilization involves the fusion of the nucleus or the genetic material of the male and female gametes. The process forms a diploid cellular structure called the zygote. After the formation of the zygote, the first cell division or mitosis produces the embryo which develops into an organism.
Answer:
embryo and gametes
what TWO factors do scientists track and monitor in all types of freshwater ecosystem?
A: light availability
B:nutrients
C:water flow rate
D: Biodiversity
Answer:
A: light availability
B: nutrients
Explanation:
Both nutrients and light availability affect the primary productivity of the freshwater ecosystem, therefore, scientists study both factors to track associated changes. This is because photosynthesis is driven by sunlight and nutrients availability. It is suggested that the abundance of autotrophs (e.g. phytoplanktons) in an aquatic ecosystem increases as light and nutrients availability increase. Thus, there will be more food available for secondary and tertiary consumers to feed upon. Resultantly, the aquatic environment will turn a biodiversity hotspot where many species of living organisms start dwelling. Thus, scientists mainly ecologists would focus on these two parameters at first that lead to consideration of other parameters.
For more information, you may want to read this scholarly article
https://aslopubs.onlinelibrary.wiley.com/doi/abs/10.4319/lo.2006.51.1.0288
which of the following is a type body language
A disease causes a plant to produce big bright flowers that are infertile. overtime the disease affects fewer plants. what likely occurred in this population?
Answer: I think that the dieses went away.
Everything in space moves except the sun. True False
Answer:
true
i think not sure
Explanation:
Answer:
true!
Explanation:
Everything in the Universe is in motion because forces exist in the Universe. The gravitational force and the electromagnetic force ensure large objects are in motion while the weak and strong nuclear forces ensure the quantum world is constantly in motion. If there were no forces, there would be no motion.
Fossil fuel deposits and the Earth’s oceans are two places in which________.
carbon is stored
oxygen is produced
nitrogen is fixed
sulfur dioxide is generated
Answer:
Carbon is stored
Fossil fuel deposits and the Earth’s oceans are two places in which carbon is stored
Explanation:
This is because the organisms that lived millions of years ago in the sea died off and their remains were compressed at the bottom of the ocean from carbon, thus creating the fossil fuels that we have today. This process took thousands of years.
10. Which of the following is an emerging dis-
ease that was unknown 50 years ago?
a. malaria
b. dengue fever
C. Lyme disease
d. schistosomiasis
Answer:
The answer for your question is C.Lyme disease...
_____ pressure is associated with rising air, clouds, and possible precipitation.
Where is RNA made? & Where does it go?
Answer:
RNA is created through the process of central dogma. The RNA is transcribed from the DNA and and transcribed from the nucleus of the cell and transported to the cytoplasm.
Explanation:
Final answer:
RNA is made in the nucleus through transcription of DNA and plays a crucial role in protein synthesis. Messenger RNA (mRNA) carries genetic information from the nucleus to the cytoplasm, where it guides protein assembly at the ribosome with the aid of ribosomal RNA (rRNA) and transfer RNA (tRNA).
Explanation:
RNA, or ribonucleic acid, is critical for translating the genetic code from DNA into proteins. Unlike DNA, which is double-stranded, RNA is single-stranded and contains uracil instead of thymine. This difference in structure allows RNA to perform its unique role in protein synthesis.
Where is the mRNA made?
mRNA is made in the nucleus of eukaryotic cells. During a process called transcription, an mRNA molecule is synthesized from a DNA template. This process transcribes the necessary genetic information encoded in the DNA into a form that can be read by the cell's protein synthesis machinery.
Where does the mRNA go after it is produced?
After the mRNA is produced in the nucleus, it is transported to the cytoplasm. Here, it travels to the ribosome to be translated into a protein. The ribosome, which contains both protein and ribosomal RNA (rRNA), reads the sequence of mRNA and directs the assembly of the protein with the help of transfer RNA (tRNA), which brings the correct amino acids to the ribosome.
Ecologists have studied the Galapagos islands for a long time because of the diversity of the populations they possess. It is thought that small colonies of finches emerged on each of these small islands, each small population carrying only certain alleles of the parent population. Over time, the emerging populations varied greatly from one another, leading to the development of new species. Which mechanism of speciation best describes this scenario?
Options for the question have not been provided. They are as follows:
migration
founder effect
temporal isolation
behavioral isolation
Answer:
founder effect
Explanation:
In the given scenario a large population of finches got divided into many smaller populations. Each of these smaller populations inhabited a particular island and adapted according to the conditions of that island. Eventually, they evolved very differently from each other and formed new species. This is a classic case of founder effect where a small group of individuals breaks off from the bigger population and starts a new population in some other area. Since a limited number of individuals start the new population, some alleles can be absent in it which were found in the original population.
How have atmospheric carbon levels changed?
Answer:
Climate Change: Atmospheric Carbon Dioxide. The global average atmospheric carbon dioxide in 2018 was 407.4 parts per million (ppm for short), with a range of uncertainty of plus or minus 0.1 ppm. ... Carbon dioxide concentrations are rising mostly because of the fossil fuels that people are burning for energy.
Over the past few centuries, atmospheric carbon levels have significantly increased due to human activities, primarily the burning of fossil fuels and deforestation. The burning of fossil fuels, such as coal, oil, and natural gas, releases carbon dioxide (CO2) into the atmosphere.
Additionally, deforestation reduces the number of trees available to absorb CO2 through photosynthesis, further contributing to increased atmospheric carbon levels. Historically, atmospheric carbon dioxide levels have varied naturally over long periods due to geological and biological processes. However, the industrial revolution and the subsequent reliance on fossil fuels have led to a rapid increase in carbon dioxide concentrations.
To provide some context, pre-industrial atmospheric CO2 levels were around 280 parts per million (ppm). As of 2021, atmospheric CO2 levels have surpassed 410 ppm, which is higher than at any point in at least the last 800,000 years. This increase has occurred at an unprecedented rate in Earth's history.
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Which of the following is true about reproduction in flowering plants?
Answer:
C. asexual
Explanation:
flowers can not reproduce by sexual means because they can't move around
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Answer: Flowering plants reproduce by sexual reproduction
4. A man who does not have freckles marries a woman who is heterozygous for freckles.
a. What are the two genotypes? _________________
b. % of offspring that will be homozygous dominant ___________
c. % of offspring that will be heterozygous ___________
d. % of offspring that will be homozygous recessive ___________
e. % of offspring that will have freckles ___________
f. % of offspring that will not have freckles__________
Answer:
a. Ff, ff
b. 0%
c. 50%
d. 50%
e. 50%
f. 50%
Explanation:
Answer: A) Ff and ff B) 0% C) 50% D) 50% E) 50% F) 50%
Explanation: Look at this punnet square
F | f
f|Ff|ff
f|Ff|ff
Which two oxides are emitted into the air when power plants produce electricity?
a. sulfur oxide and nitrogen oxide
b. sulfur oxide and nitrogen dioxide
c. sulfur dioxide and nitrogen dioxide
d. sulfur dioxide and nitrogen oxide
Answer:
sulfur oxide and nitrogen oxide
Explanation:
these are released from power plants along with carbon dioxide
Final answer:
Sulfur dioxide (SO2) and nitrogen oxide (NO) are the two oxides emitted into the air when power plants produce electricity. Their combustion contributes to air pollution and can have adverse effects on human health and the environment.
Explanation:
The two oxides that are emitted into the air when power plants produce electricity are sulfur dioxide (SO2) and nitrogen oxide (NO). Sulfur dioxide is produced from the combustion of fossil fuels, especially those containing sulfur compounds, while nitrogen oxide is produced from the combustion of fuels in vehicles and power plants. These emissions contribute to air pollution and can have adverse effects on human health and the environment.
Organisms of two different species interact. One organism is not significantly affected, while the other benefits.
Which of the following describe this interaction?
Answer:
commensalism
Explanation:
one animal benefits while the other is not harmed or affected in any way
What did Charles Darwin attempt to answer?
A. How do animals reproduce in the wilderness?
B. Can traits be passed along in sexual reproduction?
C. What kind of molecule is used to store genetic information?
D. Why do different regions have different organisms?
Answer:
D
Explanation:
the answer is D because using Darwin's theory of evolution they can have different traits or different regions and they could have been their millions of years before the animals migrated and adapted to the region
D. Why do different regions have different organisms. Various organisms are varying in different environment based on their adaptations.
Charles Darwin is best known for what?Charles Darwin is best known for attempting to answer the question of why different regions have different organisms, which is also known as the theory of evolution by natural selection.
He observed that different species of organisms had unique adaptations that helped them survive in their respective environments. Darwin proposed that over time, these adaptations could lead to the development of new species as they evolved to better suit their environment.
His work challenged the prevailing belief of his time that species were fixed and unchanging, and his theory of evolution is now widely accepted as a fundamental principle of biology.
Charles Darwin attempted to answer the question of why different regions have different organisms, which led to his development of the theory of evolution by natural selection.
Therefore, he made various theories in order to produce various consequences in order to establish the phylogenetic traits and theories along with the establishment of the creatures.
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Study island question!!
Answer:
b
Explanation:the offspring is the same as the parent
Match the signs of development with the appropriate trimester.
Fingerprints have developed.
The fetus can hear and see.
The heart beats for the first time.
Nerve cells have developed.
The sex can be determined.
Fat begins to develop.
The fetus starts to move
Signs of fetal development like fingerprints and the ability to hear are associated with the second trimester, while the first heartbeat occurs in the first trimester. Determination of sex is possible between 9-12 weeks, and significant fat development takes place in the third trimester. Early movement starts as soon as the sixth week.
Explanation:To match the signs of fetal development with the appropriate trimester:
Fingerprints have developed: This occurs in the second trimester, as fingers and toes are fully developed around the 16-week mark.The fetus can hear and see: Significant hearing development happens between weeks 16 and 26, while vision development continues throughout pregnancy, with light detection capability emerging later.The heart beats for the first time: This critical stage happens in the first trimester, at about six weeks.Nerve cells have developed: Nerve development is ongoing, but major brain structures are in place by the eighth week, with further sensory development at weeks 13-16.The sex can be determined: Differentiation of sex organs begins to occur between 9-12 weeks, allowing for determination of sex.Fat begins to develop: This occurs in the third trimester when there's rapid body growth and a substantial increase in body fat.The fetus starts to move: Uncontrolled movements begin as early as the sixth week, with more forceful movements occurring later on.