Chromoplasts have two main functions. Which of the following statements exemplifies one of the functions of a chromoplast?
a The mitochondrion was once a separate prokaryotic cell that were taken in by a larger cell.
b Potatoes are high in starch.
c Red, yellow, and orange peppers are green until they are ripe.
d The green pigment chlorophyll allows a plant to absorb energy from the sun.
Answer:
C. Red, Yellow, and orange peppers are green until they are ripe.
Explanation:
this question was difficult lol
While some mutations can benefit an organism, others are harmful and can lead to cancer. Which of the following best describes how mutations can cause cancer in an organism?
O Cell division becomes uncontrolled when mutations occur in genes that regulate cell division.
O Cells with mutations outnumber and consume normal cells that do not have mutations,
O A mutation can attack a cell's DNA and cause an autoimmune response in the cells.
+
O Mutations cause cells to become unable to divide and the cells die in masses, forming tumors.
Answer:
Cell division becomes uncontrolled when mutations occur in genes that regulate cell division.
Explanation:
Answer:
The answer is "A."
Explanation:
Cancer develops when the cells in the body are constantly dividing uncontrollably. In humans, cancer is often the result of a negative mutation genetically. The other answers are wrong and do not match the way cancer forms. So, A will be your answer.
When a hawk eats a mouse and then uses the energy from the mouse to fly,
the hawk's body converts to what
Answer:
It would be Chemical to mechanical
Explanation:
Because food is a chemical source and the hawk flying is a mechanical source.
When a hawk eats a mouse and then uses the energy from the mouse to fly in this case chemical energy is converted to mechanical energy.
What is food chain?Food chain is the sequence of flow of energy in which all the levels get proper food supply and it is the food web which starts from producer and ending at top such as predator species, decomposer and detritivores.
In food chain plants play the role of producers as they are autotrophs and they prepare their own food in the presence of sunlight and all other organisms depend upon plant for food so they are known as producers in the food chain.
The main role of food chain is to understand the importance of each organisms and how they are depend on each other as well as to understand the role of food chain in maintaining ecological balance.
Therefore, When a hawk eats a mouse and then uses the energy from the mouse to fly in this case chemical energy is converted to mechanical energy.
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What is crossing-over and when does it occur?
Answer:
Crossing Over Occurs in Prophase I of Meiosis
It is where a piece of a non-sister chromatid exchange DNA with another Non-Sister to increase genetic diversity
Explanation:
The backbone of the cell to which all organelles are attached, also functions in cell division is ______?
a.Cytoskeleton
b.Cell Wall
c.Nucleus
d.Ribosome
a) cytoskeleton as it's responsible for formation of spindle filaments during cell division
8) Anytime a Glucose Molecule is broken down in the Cytoplasm how many
ATP are released?
2
4
36
38
Answer:
2
Explanation:
This question is describing the process of cellular respiration, which is the breakdown of glucose molecule in the cell to yield energy (ATP). However, the process of cellular respiration is further divided into stages viz: glycolysis, Krebs cycle, and oxidative phosphorylation.
Glycolysis is the first stage of the process, which occurs in the CYTOPLASM of the cell. Hence, this question is specifically describing the process of glycolysis. During glycolysis, glucose molecule is broken down in a series of steps to yield a net of 2 ATP molecules.
Oxygen has 6 valence electrons. How many electrons does an atom of oxygen need to become stable?
two
four
six
eight
Answer:
2 electrons
Explanation:
According to the octet rule, atoms must bond to each other, sharing electrons among themselves in an attempt to complete their valence shell (last layer of the electrosphere). In other words, an atom becomes stable when it has 8 electrons in its valence shell.
Oxygen atoms have six electrons in their valence shell, so to achieve the stability suggested by the octet rule (eight electrons), these atoms share two electrons, forming one oxygen gas (O₂) molecule.
Answer:
A. two
Explanation:
i got it right
There are 40 chromosomes in germ cells of a ferret. How many sex chromosomes are there in a ferret's ovum?
Answer:
Explanation:
In a mitotic cell division, the number of chromosomes remains constant. It is so because the chromosomes are replicated to produce chromatid which during cell division is equally distributed in all the daughter cells thereby preserving the chromosome number.Both sperm cell and ovum have 23 chromosomes each. It is the fusion of both at fertilization that brings about 46chromosomes seen in somatic cells. These chromosomes are 22pair somatic chromosomes and a pair of sex chromosome (I.e XX or XY).The cells of the body have a diploid number of chromosomes (2N). The diploid number is usually double the haploid number (1N), so if the haploid number of chromosomes is 20, then 2x20=40. So the answer either 40 or 36
To determine the number of sex chromosomes that are there in a ferret's ovum is 2 sex chromosomes.
Given the following data:
Number of chromosomes = 40 chromosomes.Sex chromosomes can be defined as a pair of chromosomes that are responsible for determining the gender of a living organism i.e whether an organism is either male or female.
To determine the number of sex chromosomes that are there in a ferret's ovum:
Mathematically, the number of chromosomes in an organism is given by the formula:
[tex]Chromosomes = 2N[/tex]
Where:
N is the number of sex chromosomes.Substituting the given parameter into the formula, we have;
[tex]40 =2N\\\\N=\frac{40}{2}[/tex]
N = 2 sex chromosomes
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A study was
picked up was related to the number of dry cells connected to the
electromagnet. The magnet, connected to 1, 2, 3, 4, or 5 D cells, was
placed on the top of a pile of 100 paper clips and lifted. Identify the
factor(s) that should be held constant. *
free points hehehe
Explanation:
nshvbs7 susans shsbbsbs she s s s
Areas of the Earth near the equator receive large amounts of solar energy. How does this lead to increased rainfall?
A.
The solar energy creates wind, which pushes clouds from the poles to the equator.
B.
The solar energy allows plants to complete photosynthesis reactions.
C.
The solar energy heats the air, which causes water vapor to condense.
D.
The solar energy provides the energy for water to evaporate.
Answer:
D
Explanation:
The heat will make water evaporate at a higher rate thus causing more rain
which ocean formed as a direct result of the breakup of Pangea.
O Arctic. O Mediterranean O Pacific. O Atlantic
Answer:
[tex]\boxed{Atlantic\:Ocean}[/tex]
Explanation:
The rifting that occurred between North America and Africa created multiple unsuccessful rifts. One rift resulted during a new ocean, the North Atlantic Ocean.
Hope it helps!<3
( Need ASAP!!) Which of the following statements best demonstrates that gene expression is regulated?
F. Cells protect their DNA by enveloping it in a nucleus.
G. Cells do not transcribe all of their genes all of the time.
H. Each cell has an exact copy of all DNA.
3. Each tRNA has a specific amino acid that it carries.
Answer:
Explanation:
hi
Regulation of gene expression involves process by which a cell determines which genes, among the numerous genes in its genetic make-up, are "switched on" (expressed).
The option that demonstrate that gene expression is regulated is that Cells do not transcribe all of their genes all of the time.
In eukaryotes, regulation of gene expression can take place at various points. This might include post transcriptional and post-translational modifications. This mechanism ensures to control some various processes which include:
When a gene is expressed to produce RNA and protein,Amount of the protein is produced, And when the protein is no longer required.Learn more about gene expression: https://brainly.com/question/25703686
Car exhaust is an example of what type of pollution?
A. air
B. water
C. land
D. underground
Answer:
A.
Explanation:
It is a type of air pollution because it is emitted into the atmosphere.
Answer:
Air pollution
Explanation:
Car exhaust is a gas so I can infer that it would pollute the air.
Which of the following is not true of asexual reproduction?
A offspring that differ genetically from either parent
B offspring inherit all their genetic material from just one parent
C a single cell duplicates its genetic material, and then splits into two new genetically identical cells
D an example is a paramecium
Answer:
idk
Explanation:
Answer:
D
Explanation:
I don't need to put 20 charavters
what are the range biodiversity ecosystem services
Answer:
Ecosystem services are the goods and services that biodiversity provides. They include soil formation, the provision of food and fibre, air quality and climate regulation, the regulation of water supply and quality and the cultural and aesthetic value of certain plants and species.
What energy source is used to make products, such as gasoline, plastics, and Vasoline?
A
Solar
B.
Coal
С
Hydroelectric
D
Petroleum
Answer:
hydroelectric I think
Analyze the following information and identify the type of mutation –
Original: A T T C G C T T A
Mutated: A T T C C C T T A
Missense
Nonsense
No mutation
Silent
Answer:
missense
Explanation:
the codon CGC is mutated to CCC
while CGC codes for arginine, CCC codes for proline
=> missense
g When an oxygen molecule diffuses from the air in the lung into the plasma in a capillary in the lung, how many times does it have to diffuse through a plasma membrane before reaching the plasma
Answer:
The answer is 2.
Explanation:
When oxygen gets into the lungs, it first needs to diffuse through the alveoli and into the blood. Then through the veins and capillaries, it diffuses into all the calls in the body. It does so quite easily because it is a nonpolar and a very small molecule with a low concentration inside the cell. This gives it the ability to diffuse easily through the cell membrane.
So the number of times that oxygen has to diffuse through a plasma membrane is two.
I hope this answer helps.
Need answer very quickly please!!!
Which statement best describes how carbohydrates help the body maintain
homeostasis?
O A. They help the body fend off pathogens.
B. They provide the body with energy.
C. They provide the body with good genes.
OD. They help regulate body temperature.
Answer:
They provide the body with energy.
Explanation:
Androgens and estrogens are hormones that impact the sexual response cycle. Write about the four phases of that cycle and explain how the two types of hormones are involved.
Answer:
Females and males each have some amount of the sex hormones, androgens and estrogens. In males however, androgens like testosterone is more dominant and in females estrogens like estradiol are more dominant. The hormones both affect the sexual response cycle. The sexual response cycle has four phases: desire, arousal, orgasm and resolution. The desire phase can last anywhere from a few minutes to hours and includes physical changes like an increase in muscle tension, heartbeats quickening, flushed skin, and an increased flow of blood to genitals. The arousal phase extends to the brink of the orgasm phase, during this phase the changes experienced in the desire phase are intensified along with blood pressure increasing. The orgasm phase generally only lasts a few seconds and is the climax of the sexual response cycle, some characteristics include: Involuntary muscle contractions and spasms, blood pressure, breathing, and heart rate at their highest point, a release of built up sexual tension, and flushed skin. During the resolution phase the body returns to normal, often a sense of wellbeing and fatigue is achieved. To begin the cycle a male need a certain amount of the androgen, testosterone, but high levels in females tend to lead to more sexual thought and desires, typically though, women have relatively low levels of testosterone. In women, estrogens, such as estradiol are more common. Estrogens are produced when a girl starts puberty and helps her reproductive cycle begin. A high level of estrogen in men can lead to a reduced sex drive, loss of hair, or trouble focusing, but a normal level in men is crucial to proper erectile function.
Explanation:
I just submitted this i hope it helps lol :)
Four students collected data for the average resting heart rates of 100 people. "Bpm” stands for "beats per minute.”
They then compared their data to the national average, which was 70 bpm.
Alma Patti Chase Mikayla
71 bpm 69 bpm 72 bpm 110 bpm
Which results are the least likely to be reproducible?
Alma
Patti
Chase
Mikayla
Answer:
110 bpm as that is a large outlier which is very uncommon whereas the other choices are very common in regards to bpm.
Explanation:
The DNA found in most bacterial cells
Answer:
bacterial chromosome
which type of mutation results when bases are added to a gene
Answer:
"Frameshift" Mutations.
1. What is the relationship between the virus structure and its function in the virus model?
2. How do mutations affect the ability of a virus to infect a cell?
Answer:
PLZ MARK ME AS BRAINLIST....
Explanation:
ANSWER OF 1ST QUESTION -
1) it protects the nucleic acid from digestion by enzymes, 2) contains special sites on its surface that allow the virion to attach to a host cell, and 3) provides proteins that enable the virion to penetrate the host cell membrane and, in some cases, to inject the infectious nucleic .
ANSWER OF 2ND QUESTION -
Mutations can produce viruses with a reduced pathogenicity, altered host range, or altered target cell specificity but with intact antigenicity. Such viruses can sometimes be used as vaccine strains.
Can someone design me an infographic explaining climate change and what we should do about it. In 30mn or a hour please it’s urgent. Thanks for your time.
What's an infographic?
Answer:
lol for 5 points
Explanation:
An organism is exposed to a mutagen, such as X-rays or ultraviolet light. What could be the effect of the mutagen on the organism? Select all of the answers that apply.
The mutagen may disrupt gene function to the harm of the organism.
B. The mutagen may change gene function in a way that benefits the organism.
C. The mutagen may change the genetic material of the cell from DNA to proteins.
D. The mutagen may change the binding between codons and anticodons.
E. The mutagen may have little or no observable effect on the organism.
Answer:
a, b, c, e
Explanation:
- since mutations are random, they could both harm or benefit or have no effect on the organism (depends on where in the DNA is mutated, on the type of mutation that occurs, on whether the mutation is fixed, etc.)
- the binding between codons and anticodons are always as follows:
A on mRNA binds to U on tRNAT on mRNA binds to A on tRNAG on mRNA binds to C on tRNA and vice versaMutagens are substances that damage DNA and can cause permanent changes in the DNA sequence, depending on the ability of the organism to fix the mess.
Mutagen's effect:Deoxynucleoside triphosphates (dNTPs), which are utilized by DNA polymerases to duplicate DNA, can also be damaged by DNA-damaging agents.
A mutagen could harm the organism by disrupting gene function.A mutagen may alter gene function to the organism's benefit.A mutagen can alter codon-anticodon binding.Therefore, the final answer is "Option A, B, and D".
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PLEASE HELP ALOT OF POINTS MARKING PEOPLE AS BRAINLIST
What will be the end result of the process shown in the model?
A. Two identical daughter cells will be produced.
B. Crossing over will result in new genetic material.
C. Chromatids will have just moved toward opposite poles.
D. One much larger cell will be produced through nuclear fusion.
Answer:
i think its b i could be wrong
Explanation:
The correct model shown is Crossing over will result in new genetic material.
What is crossing over?
When it comes to genetics and genomics, the term "crossing over" describes the DNA exchange that takes place between paired homologous chromosomes (one from each parent) during the development of egg and sperm cells.
This process leads to novel allele combinations in the gametes (egg or sperm) produced, ensuring genomic variety in any offspring born.
When chromosomes of the same type are paired together during meiosis, a biological event called crossing over takes place. Parts of the chromosome can be exchanged when two chromosomes, one from the mother and one from the father.
Therefore, The correct model shown is Crossing over will result in new genetic material.
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Natural selection is BEST described as
Answer:
not know
Explanation:
The 15 tectonic plates are rigid in the center and have geological activity at the boundaries (edges). This means that:
Please help! I’ll mark brainliest
Answer:
heterozygous
Explanation:
i might be wrong
Answer: Cannot tell- Not enough information provided
Explanation: We know for certain the son is NOT ww because the son has the dominant trait for the widow's peak. Both the parents are Ww because their daughter lacks a widow's peak, which means they both must carry the recessive gene. If we conduct a Punnett Square with the parents genotypes which are both Ww, the son has a 25% chance to be WW, and a 50% to be Ww and a 25% chance to be ww (which he is not since he has a widow peak!). The son could be WW or Ww. In order to find out which genotype the son has, we'd have to look as his offspring!
I hope this helps!!