Answer:
a
Explanation:
Four conditions are needed for natural selection to occur: reproduction, heredity, variation in fitness or organisms, variation in individual characters among members of the population. If they are met, natural selection automatically results.
Answer:
Genetic variation in species
Explanation:
Natural selection is based on the idea of differential survival and reproduction. Basically this means there are genetic differences between individuals and there are too many individuals in the population to survive. The ones with the best genetic variations will survive and pass their genes on to their offspring. This doesn't happen if all organisms in the population are identical - either they all die, or they all survive.
A pear plant with the genotype Aa can produce gametes containing:
1: either AA, Aa, or aa
2: only the dominant A
3: either A or Aa
4: only the recessive a
5: either A or a
The genotype of pea plant.
A plant of pear with a genotype that is Aa and makes a gamete having dominant and recessive traits. The all possible combinations such as AA, aa etc. can be produced.
Hence the answer is either A or a.
As per the Punnett table, the Aa will firm the gametes that are aa, AA, or Aa.Depending on the dominance of the trait or gene. The planet is found with larger gametes will have A and fewer gametes will have a. Thus the option E is correct.Learn more about the pear plant.
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In one plant, the allele for long stems (L) is dominant; the allele for short stems (l) is recessive. The scientist crossed a heterozygous, long-stemmed plant with a short-stemmed plant. Which of these shows the expected results of this cross
Complete question:
In one plant, the allele for long stems (L) is dominant; the allele for short stems (l) is recessive. The scientist crossed a heterozygous, long-stemmed plant with a short-stemmed plant. Which of these shows the expected results of this cross?
50% long-stemmed plants and 50% short-stemmed plants 75% long-stemmed plants and 25% short-stemmed plants 100% long-stemmed plants 100% short-stemmed plantsAnswer:
50% long-stemmed plants and 50% short-stemmed plantsExplanation:
Due to technical problems, you will find the complete explanation in the attached file.
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Write a research paper about do you believe in evolution? Why or why not?
Answer: Yes
Explanation: Evolution is a fact, but not all evolve at the same time, not all have the equality of the study and for this reason evolution is delayed worldwide.
Answer:
Yes, I belive in evolution because of how muech the world has changed it's form over they years. To break it down a little more take humans for an example we weren't always like this we didn't have all these citys, buildings, tec, and so on. Back in the days when we still have native tribes and explorers they didn't have a house to sleep in they slept in tents or in carrages but as time evolved so did our minds and our brains thats when cabins started then after that houses then cars, power, and even more, but they had to learn how to do this. They evolved their minds to create they evolved to make it throught bad times they had to evolve along with mother nature her self. we all made it this far thanks to the great mind of evolution adn thats why I believe.
If whales and turtles become rare in this ecosystem, what would you expect the effect
to be on the number of jellyfish?
Answer:
the jellyfish population should go up because nothing but turtles eat them
This food web describes feeding relationships in a tropical community.
boa constrictor
beetle
coati
poison dart frog
sloth
strangler fig
fungus
fruit bat
If an invasive species of beetle enters this community, which change is most
likely to happen?
A. A decline in the native species of beetle
B. An increase in biodiversity throughout the community
C. An increase in the stability of the overall ecosystem
D. A decline in competition for strangler figs as a food source
Answer:
A. A decline in the native species of beetle
Explanation:
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Answer:
Fossil A!
Explanation:
Answer:
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Explanation:
3. Give one reason why the reaction, ADP + P > ATP + H20, requires energy input.
(Hint: Notice the charges of the molecules in the top figure.)
Answer:
Both ATP and Phosphates have a negative charge. Energy is used so that the electrons do not repel each other.
Explanation:
Phosphates and ATP share the property of having a negative charge. In order to prevent the electrons from repelling one another, energy must be applied.
Why ATP formation need energy?The hydrolysis of ATP to ADP is reversible, just like the vast majority of chemical processes. Through the process of the opposite reaction, ATP can be regenerated from ADP using Pi and ADP. Since the hydrolysis of ATP results in the release of energy, the synthesis of ATP must involve the addition of free energy.
Phosphates and ATP share the property of having a negative charge. In order to prevent the electrons from repelling one another, energy must be applied.
By rupturing and then reforming the bonds that hold its phosphate groups together, ATP is able to effortlessly release and store energy. Because of this property, ATP is an excellent candidate for the role of fundamental source of energy for each and every cell.
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When is the most possible time for fertilization if the menstrual cycle is 28 days? Why?
Answer:
You're most fertile about 12 to 14 days before your next period starts. This is the time of the month when you're most likely to get pregnant. It's unlikely that you'll get pregnant just after your period, although it can happen.
Explanation:
This is because at this stage you are ovulating (an egg is being released from your ovaries)
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Question:- what is photosynthesis?
A cricket has 22 chromosomes in each body cell (somatic). How many chromosomes are in each sex cell (egg or sperm) of a cricket?
Answer:
How many of these chromosomes will be found in an egg cell? All 46 chromosomes. No, sex cells have a half set of chromosomes. 23, one from each pair.
Explanation:
answers for secret of photo 51 video?
Answer:
Answer: I don't know .....
2. The mutation below is best described as a
A.nonsense mutation.
B.missense mutation.
C.frameshift mutation.
D.point mutation.
Answer:
Frameshift mutation
Explanation:
The first nucleotide is removed or deleted but it's not up to three so it can't code for any amino acid.
The coding shifts from one point to the next.
Compare and contrast the mRNA sequence of the super powers "super strength” and “Agility” Are there any changes to the final product ? Explain
Answer:
b.
Explanation:
White tailed deer begin their reproductive cycle in the fall. Rising testosterone levels in
male white tailed deer cause them to start their breeding season around the same
time. Offspring are born the following spring and summer.
What is the most likely explanation for the white-tailed deer having a seasonal
breeding cycle instead of a monthly breeding cycle?
The explanation for the white-tailed deer having a seasonal breeding cycle should be that deer provide birth in the spring and summer.
What is seasonal breeding?It is considered to be animal species so it should be successfully mated at the time of specific times of the year. It permits the optimization of survival of young because of factors like food, water availability, etc
So, here deer provide birth in the spring and summer for avoiding the pregnancy at the time of hot summer months.
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1. Where does the process fertilization take place?
2. When is the most possible time for fertilization if the menstrual cycle is 28 days? Explain your answer.
3. The placenta is completely developed by the end of the third month. Which organ supplies the embryo with oxygen and nutrients before the formation of the placenta?
Explanation:
Answer 1) fertilization takes place in the fallopian tubes, which connect the ovaries to the uterus
Answer 2) sorry i dont know
Answer 3)The unborn baby is connected to the placenta by the umbilical cord. All the necessary nutrition, oxygen, and life support from the mother's blood goes through the placenta and to the baby through blood vessels in the umbilical cord
13. What type of energy does the plant use to convert CO2 and H20 into sugar?
Answer:
light energy
Explanation:
Answer:
It's light energy.
Explanation:
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Original DNA strand: ATT GAG CC Mutated DNA strand: ATT GAG CT What type of mutation does the example above demonstrate?
Original DNA strand: ATT TGA GCC
Mutated DNA strand: ATT TGA GAC C
What type of mutation does the example abo w demonstrate?
The examples above demonstrate a substitution mutation.
A substitution mutation is a type of mutation that occurs when one nucleotide in the DNA sequence is replaced by another nucleotide. In the first example, the original DNA strand has the sequence "ATT GAG CC," but in the mutated DNA strand, the nucleotide "C" is replaced with "T" at the third position, resulting in "ATT GAG CT." This single nucleotide substitution is a specific type of substitution mutation known as a missense mutation.
In the second example, the original DNA strand has the sequence "ATT TGA GCC," but in the mutated DNA strand, the nucleotide "C" is replaced with "A" at the sixth position, resulting in "ATT TGA GAC C." Again, this is a substitution mutation where a single nucleotide is replaced by another.
Substitution mutations can have different effects on the resulting protein. In some cases, the change in the DNA sequence may lead to the production of a different amino acid during translation, which can alter the structure and function of the protein. Depending on the specific location and nature of the substitution, it can have varying impacts on the phenotype and may or may not result in a noticeable change in the organism.
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does cigarette smokingincrease the risk of lung cancer
Answer:
Cigarette smoking is the number one risk factor for lung cancer. In the United States, cigarette smoking is linked to about 80% to 90% of lung cancer deaths.
Explanation:
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Genetic modification is a method farmers use so their crops are resistant to disease or cold temperatures. Which of these is a negative consequence of using genetically modified organisms?
Genetic modification increases the extinction rate of the modified organism.
Genetic modification decreases the population size of the modified organism.
Genetic modification increases the carrying capacity of the modified organism.
Genetic modification decreases the genetic variation of the modified organism.
Answer:
Genetic modification decreases the genetic variation of the modified organism.
Explanation:
Genetic modification is widely used in agriculture for increasing productivity and to make crops resistant to diseases but along with advantages there are some disadvantages of genetic modification that involve decreases the genetic variation of the modified organism.
This is so because the DNA or genetic material of the modified organisms will have very less diversity as they have grown with the same process and the DNA among the organisms will become similar to each other.
Hence, the correct answer is "Genetic modification decreases the genetic variation of the modified organism."
Answer:
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Genetically modified foods, also known as genetically engineered foods, or bioengineered foods are foods produced from organisms that have had changes introduced into their DNA using the methods of genetic engineering.
The most common GMO crops include soybean, maize, cotton, canola, and alfalfa. The following GMO crops were also planted in different countries in 2018: papaya, eggplant, potato, apple, safflower, pineapple, and sugarcane.
For centuries, farmers have bred crops for certain desirable traits. Genetically Modified (GM) crops offer improved yields, enhanced nutritional value, longer shelf life, and resistance to drought, frost, or insect pests.
Genetic modification of plants involves adding a specific stretch of DNA into the plant's genome, giving it new or different characteristics. ... The gene of interest is transferred into the bacterium and the bacterial cells then transfer the new DNA to the genome of the plant cells
GMOs have helped farmers reduce their environmental footprint by allowing them to use fewer inputs and enabling a shift to reduced tillage. These practices have led to less time spent on a tractor, less fuel used and fewer emissions.
Explanation:
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Answer:
Net force is 100 N
Explanation:
You will use the formula to find the net force/force.
mass = 0.05 kg
acceleration = 2000 m/s^2
F = m × a
F = 0.05 kg × 2000 m/s^2
F = 100 N (Newtons)
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Which of the following describes a state of equilibrium?
Answer:
the condition of a system when neither its state of motion nor its internal energy state tends to change with time.
or b partially
1. Marine snow refers to
A Appearance of the water during freezing weather.
B. animal and plant plankton that die and drift downward.
C. white sand beaches that form on ocean coasts.
D. algai blooms that form on the surface of a body of water.
E. weather over the Arctic that contributes to the ce pack
Answer:
B. animal and plant plankton that die and drift downward.
Please help me with this question about chromosomes
Answer:
The third one!
The model below shows a type of cell.
What type of cell does the picture show?
Answer:
no idea as picture is not shown clearly
One species of fish, Amphiprion percula, lives unharmed among the stinging tentacles of sea anemones, where they are protected
from predators. This is an example of
A)
mutualism.
B)
competition
C)
parasitism
D)
predation
Answer: A. mutualism
Explanation:
Which nitrogenous base would pair with adenine during DNA replication?
A
O cytosine
<
B
O guanine
C
Othymine
D
ouracil
The nitrogenous base would pair with adenine during DNA replication is othymine. Thus, option C is correct.
What are nitrogenous base?
Replication relies on complementary base pairing, that is the principle explained by Chargaff's rules and adenine (A) always bonds with thymine (T) and cytosine (C) always bonds with guanine (G). 18% became cytosine pairs with G. A pairs with T. T and C are not complementary base pairs, but we know that if molecules consists of 32% T, it must have 32%.
The discovery of the structure of DNA was useful because it revealed how mRNA was used to make proteins. There are four nitrogen bases of DNA nucleotides are such as adinine, thymine, guanine and cytosine.
HDL stands for high-density lipoprotein or good cholesterol which absord cholesterol and send it to lever. The lever then flushes it from the body. High-density lipoprotein can lower your risk for heart disease and stroke.
Therefore, The nitrogenous base would pair with adenine during DNA replication is othymine. Thus, option C is correct.
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The passengers are facing forward in the direction that the train is moving. What will happen to the passengers sitting on a train if the train comes to a sudden stop? Question 6 options: They will feel a force pushing them downward. They will feel the force pushing them upward. Their bodies will move backwards. Their bodies will move forward.
Answer:
Their bodies will move forward.
Explanation:
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Which of the following will result from the bottleneck effect?
A. Increase genetic diversity
B. Decrease genetic diversity
C. Adaptation of species
D. Reproductive Isolation
Answer:
B. Decrease genetic diversity
Explanation:
Answer:
Explanation:
decrease in genetic diversity because only some species will reproduce adequately due to the bottleneck effect
witch molecule does water become?
witch molecule does carbon dioxide become?
Answer:
H2 +1/2O2 ----> H2O
C +O2------> CO2
Explanation:
Microorganisms also exist in the fossil record, but they’re rarer than other types of fossils. The most common fossils form from hard body parts, such as bones, teeth, and shells. Why do you think these fossils are more common than fossils of other soft tissues or microorganisms?
Answer:
Organisms decompose more quickly when they are in contact with oxygen. ... When an organism is buried quickly, there is less decay and the better the chance for it to be preserved. The hard parts of organisms, such as bones, shells, and teeth have a better chance of becoming fossils than do softer parts.
Explanation:
Answer:
When the decomposing process of an organism is taking place, it is breaking apart the nutrients within the organism in order to return it to the Earth in itself. When an organism buried at a quicker pace it cause the decomposing process to last at a longer time, which in term makes the chance of it being better preserved in at the same time. Due the bones of different organisms we are able to analyze the organism that has decomposed, because once that time of decomposition is complete we will be able to see the fossils of the organism and the evaluate the categorization of the specific organism that a scientist is examining.
Explanation: