Answer:
In a darker background, natural selection favors the darker birds.
Same goes for a ligter background
Explanation:
There is pressure in a population to look the same, because if you are white in a flock of regular pigeons, you will be targeted by predators, mainly Peregrine Falcons. However, in a city environment, it my benefit you (the pigeon) to be a different color, as more people will feed you. However, due to the release/escape of domestic pigeons, new colors that would not have appeared in the wild population are there.
Just drop a comment if you want a more detailed explanation.
Has ethanol changed since discovery ?
why textures in the same sill might vary, with finer grains along the margin and coarser grains toward the middle?
This question is related to the formation of sill through volcanic activity. See the explanation below.
What is responsible for the coarseness of sills?The reason for the variance in the coarseness of grains is the formation of igneous rocks happens deep in the earth and on this surface.
The texture of the sill is dependent on the rate at which it cools.
Coarse-grained sills are formed deep within the earth's crust while the other cool rapidly on the earth's surface.
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Biology and physics define
Answer:
Biology is the study of life, while physics are the study of matter and energy used to determine how the universe behaves.
A man who heavily smokes has developed lung cancer. The tobacco smoke has caused mutations in some of the cells in his lungs, making them unable to stop reproducing and dividing. He is worried that his children, none of whom smoke, may have inherited the lung cancer from him. Under what circumstances might his concern for his children be justified? If his smoking had already mutated the DNA in the cells in his lungs at the time his children were conceived, the mutations would have been passed to his children. If he inherited a mutation which made him more susceptible to lung cancer, it may have been present in some of the gametes he produced and passed to his children. If the mutation resulted from the duplication of a gene in his lung cells, his children would be at greater risk than if it were caused by a base pair substitution. If the smoke had caused multiple different mutations in his lung cells, it would be more likely that one or more of the mutations would be passed to his children.
If he inherited a mutation that made him more susceptible to lung cancer, it may have been present in some of the gametes he produced and passed to his children is the circumstance that might his concern for his children be justified.
What do you mean by Mutation?A Mutation may be defined as sudden, stable, and inheritable changes in the genetic material of an organism.
Gametes of germline cells play an important role in the inheritance of mutation from parents to their offspring, which means that if a mutation has occurred in an egg or sperm cell, it will be more chances that the offspring carry mutated DNA.
Therefore, it is well-described above.
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Help pls
Which role do plants play in the nitrogen cucle?
Which of these statements best explains why water flows from point A to point B?
The salinity at B is more than at A.
The wind velocity at B is more than at A.
The temperature at A is more than at B.
The water density at A is more than at B.
The statement best explains why water flows from point A to point B is The temperature at A is more than a B.
Thus option "C" is correct.
What is Thermohaline circulation?Thermohaline circulation is the circulation in oceans which are driven by differences in density. The word thermohaline means thermo-temperature and haline-salinity.
The differences in the temperature difference arise from heating and cooling at the ocean surface, freshwater fluxes, ice formation increases the salinity, ice melting decreases salinity, and precipitation also increases salinity.
Thus, option "C" is correct.
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Answer:c
Explanation:test
Play help me with number 1
Answer:
SVB THE AREA OF LOVE BODY SQUTR
Do you think that a company can own an organism?
Answer:
The Supreme Court of the United States ruled in Myriad Genetics, Inc. that human genes cannot be patented in the United States.
Explanation:
since DNA is a "natural product" Because there is no new intellectual property created when a gene is discovered, the Court determined that patents cannot be granted.
According to this diagram, which number(s) most closely represents the process of photosynthesis?
1, 2, 5, or 6?
Please help!
According to this diagram, 1, 2, and 5 numbers most closely represent the process of photosynthesis.
What is photosynthesis?Photosynthesis is a chemical process carried out by plants that generate biomass by using light energy.
This process (photosynthesis) is known to be carried out by producers which are used as food by herbivores.
In conclusion, according to this diagram, 1, 2, and 5 most closely represent the process of photosynthesis.
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5 Cheryl has brown hair, green
eyes, and tanned skin. Which
of these traits results from
the environment that Cheryl
lives in?
A tanned skin
B brown hair
C green eyes
D freckles
Surface impoundments are pond-like areas that are used to hold liquid hazardous waste. Surface impoundment sites should have ______.
A: A heavy, plastic liner that keeps waste from leaking into the soil
B: Many earthquakes
C: No liner
D: Streams that flow into and out of them so that the waste can move downstream into local rivers
Answer:
A: A heavy, plastic liner that keeps waste from leaking into the soil
Explanation:
They must have a liner so that toxic wastes such as metals and others cannot seep from waste into the soil.
PLS ANSWER MY WORK IS DUE IN 5 MINUTES
Which of these organelles are similar betwen a plant and animal cell? Choose multiple answers.
A. Mitochondria
B. Golgi Body
C. Cell wall
D. Rough and Smooth ER
Answer:
A. mitochondria
sorry that is the only answer ik is right
Answer:
a) Mitochondria
Explanation:
Cell membrane, cytoplasm & mitochondria are the organelles similar between a plant and animal cell. Therefore, the option (a) is the correct answer.
How does cell differentiation to the organization within a organism ?
Answer:
Cells eventually become specialized and use different parts of genes to become programmed to do special jobs and look a certain way.
Explanation:
which permits a single gene to code for more than one polypeptide
Answer:
Alternative splicing
Explanation:
Alternative splicing, or alternative RNA splicing, or differential splicing, is an alternative splicing process during gene expression that allows a single gene to code for multiple proteins.....Hope this helps
Will the DNA move towards the anode or cathode? Why?
Answer:
Yes, DNA is negatively charged because of the presence of phosphate groups in nucleotides. Thus, It will move towards the positive anode.
Human impact on ecosystems would most likely lead to secondary succession over primary succession. True or false
Answer:
TRUE
Explanation:
Secondary succession can happen after primary succession or independently of primary succession. Which type of change was seen in the ecosystems affected by the 1988 fires in Yellowstone Park? Human impact on ecosystems would most likely lead to secondary succession over primary succession.
Which organs perform both mechanical digestion and chemical digestion of food?
Answer:
stomach
Explanation:
stomach churns the food (mechanical digestion) and the enzymes in the hydrochloric acid perform the chemical digestion part.
i believe mouth also does the same because it technically chemically digests with the enzyme amylase in the saliva but the overall answer is stomach.
Imagine that you are a doctor in a maternity ward. During your last shift, 20 babies were born. 10 had blue eyes, and 10 had brown eyes. Remember genotypes are the two alleles given for each trait, written with a letter. For this activity B =brown eyes b= blue eyes. Phenotypes are the physical appearance of the trait.
Which color of eyes is dominant? How do you know this? What does this mean in terms of inheritance?
Where do the tRNA take amino acids?
to the nucleus
outside of the cell
to the ribosome
Answer:
To The Ribosome.
Explanation:
To start, let's review. First off, tRNA means transfer RNA; type of RNA that carries amino acids to the ribosome. An amino acid is a carboxylic acid with an amino group and the building block of proteins. The nucleus is the "brain" of the cell, the control center of the cell, where genetic material (DNA) is found, the nucleus is in charge of everything that happens inside of a cell. The nucleus is the largest and most important part of the cell. Nuclear Envelope. The general purpose of the nucleus is to predetermine and control the production of proteins. It does this by storing the protein code in the DNA, which is hereditary. A cell is the smallest part of a living thing that can carry out the activities needed for life. The ribosome is a cell organelle constructed in the nucleolus and functioning as the site of protein synthesis in the cytoplasm; consists of rRNA and protein molecules, which make up two subunits. Since we're done reviewing, let's go through the processes of how the tRNA take the amino acids to the ribosome. There are two steps in protein synthesis. They are transcription and translation. During transcription, mRNA (Messenger RNA) is formed in the nucleus of the cell. After mRNA has been made, it leaves the nucleus and goes to the ribosomes in the cytoplasm, where translation occurs. (DNA never leaves the nucleus.) During translation, mRNA attaches itself to the ribosome. Then, tRNA (Transfer RNA) reads the mRNA codons (a codon is a sequence of three nucleotides that code for a protein) and attaches amino acids accordingly. This continues until tRNA reaches a stop codon. Translation is the second phase of protein synthesis. It follows transcription, in which the information in DNA is "rewritten" into mRNA. During translation, the mRNA attaches to a ribosome. Transfer RNA (tRNA) molecules then "read" the mRNA code and translate the message into a sequence of amino acids. Every three nucleotides in the mRNA make up one codon, which corresponds to one amino acid in the resulting protein. The ribosome tracks along the mRNA until it reaches a stop codon, signaling the assembly of mRNA and ribosome to break apart. Protein synthesis is the process where cells create proteins. There are two steps in protein synthesis. They are transcription and translation. During transcription, mRNA (Messenger RNA) is formed in the nucleus of the cell. After mRNA has been made, it leaves the nucleus and goes to the ribosomes in the cytoplasm, where translation occurs. (DNA never leaves the nucleus.) During translation, mRNA attaches itself to the ribosome. Then, tRNA (Transfer RNA) reads the mRNA codons (a codon is a sequence of three nucleotides that code for a protein) and attaches amino acids accordingly. This continues until tRNA reaches a stop codon.
does RNA interference occur before or after transcription?
Answer:
controlled after transcription
Explanation:
what are three major lines of evidence that mitochondria arose from endosymbiosis with proteobacteria?
Answer:Most important are the many striking similarities between prokaryotes (like bacteria) and mitochondria: Membranes — Mitochondria have their own cell membranes, just like a prokaryotic cell does. DNA — Each mitochondrion has its own circular DNA genome, like a bacteria’s genome, but much smaller.
Explanation:
Most important are the many striking similarities between prokaryotes (like bacteria) and mitochondria: Membranes — Mitochondria have their own cell membranes, just like a prokaryotic cell does. DNA — Each mitochondrion has its own circular DNA genome, like a bacteria’s genome, but much smaller.
The DNA, plasma membrane, and reproductive process are the evidence that supports the endosymbiotic theory of mitochondria.
What is endosymbiosis?Endosymbiosis is a process that includes the engulfing of one cell by another. It is said that mitochondria originated endosymbiotically from proteobacteria.
The presence of the mitochondrial DNA although small shows similarity to bacterial DNA. The mitochondria are membrane-bound organelle like the prokaryotic bacteria.
The reproductive process of mitochondria resembles the bacterial reproduction method. The cytoplasm and the genetic material are divided in a similar fashion.
Therefore, DNA, reproduction, and membrane are evidence of the Endosymbiotic origin of mitochondria.
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Which of the following is an advantage of hanging up clothes to dry instead
of using a clothes dryer?
A. It takes longer to dry the clothes.
O B. It uses more fossil fuels. .
C. It works only on dry, sunny days.
D. It uses no electricity.
Answer:
D. It uses no electricity
Explanation:
3 Select the correct answer. Rachel’s parents are building a new house for their family. They want to design their house to minimize pollution. Which option will help them achieve their goals? A. Install a garbage disposal in the kitchen sink instead of throwing out garbage. B. Use solar panels for heat energy instead of burning fossil fuels. C. Use bright paint colors on the walls instead of natural tones. D. Build a large house instead of a small house.
Substances that can rust or decompose are considered _____.
A: Ignitable
B: Corrosive
C: Radioactive
D: Toxic
Answer:
B) Corrosive
Explanation:
A corrosive is a substance which is capable of causing corrosion. Corrosives can affect metals, plastics, ceramics and numerous other materials
Answer:
A
Explanation:
corrosive means dangerous to skin
radioactive cannot decompose
toxic is just wrong
What is the answer to this question
Answer:
c) Sunlight
I think it is c
Explanation:
5. What can't the developing fetus be tested for?
Answer:
The two main types of prenatal testing are: Screening tests. Prenatal screening tests can identify whether your baby is more or less likely to have certain birth defects, many of which are genetic disorders. These tests include blood tests, a specific type of ultrasound and prenatal cell-free DNA screening. But they can be tested,, CVS is a test where the doctor collects a tiny piece of the placenta, called chorionic villus, which is then tested to check for chromosomal or genetic disorders in the baby.
Explanation:
Which of the following is an example of all countries of the world working together to protect the environment?
A: Clean air act
B: Montreal Protocol
C: RAD program
D: "Greenchill"
Answer:
C
Explanation:
An example of all countries of the world working together to protect the environment is the RAD program. The correct option is C.
What is the RAD program?RAD enables public housing organizations to reinvest in the supply of public housing by leveraging public and private finance and equity.
The Section 8 project-based voucher (PBV) and the Section 8 project-based rental assistance are the two HUD financing contracts that PHAs can use to operate a property under RAD (PBRA). PBV and PBRA contracts are longer-term, more reliable funding sources because they last 15 or 20 years.
Despite being listed as an asset, the RAD is not a financial asset, hence no income is seen as having been earned on this sum. The age pension asset test does not apply to any money received as a RAD, which may have an effect on recipients' age benefits.
Therefore, the correct option is C: RAD program.
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please help me i’ll give you brainlist
Answer:
D
Hope that helped! I would appreciate a Brainliest, if you wouldnt mind! Have a good day!
Which of these pollutants
commonly gets "stuck" below a
temperature inversion?
A. hydrogen peroxide
B. water
C. ozone
D. helium
Answer:
Acorrect me if I'm wrong poAnswer:
C
Explanation:
The pollutant known as ozone commonly gets "stuck" below a temperature inversion. As temperatures rise, ozone levels in many places stop rising with temperature. This phenomenon is commonly referred to as ozone suppression.
please help me i’ll give you brainlist
Answer:
1.Kingdom
2.Phylum
3.class
4.order
5.family
6.genus
7.species