Answer:
the difference between dominate and recessive alleles are that the dominate allele will be expressed if it is present, while the recessive allele will only be expressed in the absence of the dominate trait
The offspring of the round-seed allele and the wrinkled-seed allele will have the ___________ phenotype
Answer:
4738hrjeifgt47ruj3
Explanation:
The supporting paragraphs in a research essay are built on:
A. your opinions about works of literature.
B. accepted rhetorical conventions.
C. bibliographical entries to your works-cited list.
O D. the information you gather during the research process.
Answer:
D
Explanation:
factors affecting environment and development
Answer:
Environmental factors affecting plant growth and development include light, temperature, water, humidity, and nutrition. At the time of nurturing a tree, it is important to know how these factors could affect the growth and development of a plant. Knowledge about environmental factors helps the owner promotes proper growth.
In the experiment, "Do white cats eat more than black cats?" the independent variable would be:
the color of the cat.
how much each cat weighs.
how much food each cat eats.
the temperature of the food.
In the given experiment, the independent variable would be the color of the cat. Thus, the correct option for this question is A.
What is an Independent variable?An independent variable may be defined as a type of variable that significantly and effectively stands alone and isn't changed by the other variables you are trying to measure. The independent variable is the cause. Its value is independent of other variables in your study.
According to the context of this question, the color of the cat would not depend on how much food a particular type of cat eats. This will depend on the nature and diet of the cat along with its physiology and pattern. So, the color of the cat would be thought to be the independent variable in the experiment because it does not make any sense in the eating cat.
Therefore, in the given experiment, the independent variable would be the color of the cat. Thus, the correct option for this question is A.
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How many chromosomes are made by using a cell "c"
Answer:
In humans, each cell normally contains 23 pairs of chromosomes, for a total of 46. Twenty-two of these pairs, called autosomes, look the same in both males and females. The 23rd pair, the sex chromosomes, differ between males and females.
Explanation:
what is applied microbiology
Definition. Applied microbiology is a scientific discipline that deals with the application of microorganisms and the knowledge about them. Applications include biotechnology, agriculture, medicine, food microbiology and bioremediation.
Use the scenario to answer the following question.
A forest ecosystem is home to mountain lions, coyotes, bobcats and deer.The deer eat grass. The mountain lions, coyotes, and bobcats eat deer. Hunters began killing large numbers of mountain lions, coyotes, and bobcats. About twenty years later, the deer population had largely increased. The teacher asked the students to explain why the population of deer had a large increase in population size.
Which student’s argument MOST accurately explains the increase in the deer population?
A. Student 2: The number of deer increased because without mountain lions, coyotes, and bobcats, the deer lived longer and had more offspring that also lived longer.
B. Student 3: The number of deer increased because with fewer mountain lions, coyotes, and bobcats, the deer had more food available to eat.
C. Student 1: The number of deer increased because deer populations are always increasing, even when there are mountain lions, coyotes, and bobcats preying on them.
D. Student 4: The deer population increased because with fewer mountain lions, coyotes, and bobcats, there was less competition within the deer population.
Answer:
A
Explanation:
The mountain lions, coyotes, and bobcats control the deer population hence in their absence the deer life span increased.
How do native plants respond after a degraded marsh has been restored to a healthy marsh?
Answer: slate
Explanation:
Helicase is an enzyme responsible for unwinding the double helix of the DNA by breaking apart the hydrogen bonds between each of the base pairs. Which phase of the cell cycle is helicase most likely active? s M G1 G1
Answer:
G1 Phase
Explanation:
Explain Darwin’s theory of evolution
Answer:
Charles Darwin's theory of evolution states that evolution happens by natural selection. Individuals in a species show variation in physical characteristics. As a consequence those individuals most suited to their environment survive and, given enough time, the species will gradually evolve.
Explanation:
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Cichlids, a type of fish, were introduced to a lake around 200 years ago. Over the years, the fish have developed into two distinct groups. One group stays in the main lake and the other group resides in the streams that flow into it. Both groups of cichlids breed in the same streams at the same time of year. However, the groups are splitting into two genetically and physically different types of fishes. How would you classify this type of speciation
Answer:
sympatric speciation
Explanation:
Different sympatric species have the same closest ancestor and live in the same area but inhabiting different niches.
The steps for sympatric speciation are:
An ancestral species inhabit a geographic area.With time, different populations of the same species occupy different niches or microhabitats in this general area. As the microhabitats are different, they have different environmental pressures that are acting on each population.These pressures lead to the origin of differences between groups, which need to adapt to each environmentEach population suffers genetic changes due to environmental conditions. These changes are inheritable.With time, these differences drive to the final complete divergence of populations, becoming different species and reproductively isolated.In sympatric speciation, the interruption of genetic flow must be fast, and there must be differences in niches so no species can compete and displace the other species. Speciation occurs in the same distribution area of the original species. The new species originate in a place with no physical barriers but different environmental pressures.
In the exposed example,
The introduced Cichlid fishes 200 years ago → Original species and the common ancestor between the new derivated speciesThe lake → general geographic areaThe main lake and the streams → Microhabitats or niches with different pressures eachThe groups are splitting into two genetically and physically different types of fishes. They do not mate. There is no genetic flow between groups. → Speciation process.id- 5121786233 p/w- tepQ3w
Answer:
I need 1 Brainliest before I can become Virtuoso
Explanation:
Answer:................. I just needed the points so I can get help on my math work........
Explanation:
A rock contains a radioactive isotope that decays to half of its original
amount in 5 million years. When this rock formed, it was made up of 100%
of the radioactive isotope, and 0% of the new element that it decays
If you find this rock and analyze it, and find that it contains only 50% of the
radioactive isotope and 50% of the new element, how old must this rock
be? *
1) 2.5 millon years
2) 10 million years
3) 5 million years
4) 15 million years
Answer:
3) 5 million years
Explanation:
The rock is 5 million years old because the rock contains only 50% of the radioactive isotope. We know that this rock decays to become half in 5 million years. Initially, the rock has 100% of radioactive isotope and 0% of the new element that forms with the decaying of the rock. But 50% of the radioactive isotope decays and 50% of the new element is formed so we can say that it reaches to its half age which is 5 million years.
what elements cycle between living and non living organisms?
Explanation:
The ways in which an element—or compound such as water—moves between its various living and nonliving forms and locations in the biosphere is called a biogeochemical cycle. Biogeochemical cycles important to living organisms include the water, carbon, nitrogen, phosphorus, and sulfur cycles.
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Intro to biogeochemical cycles (article) | Khan Academy
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Elements that cycles between living and nonliving things are as follows: water, carbon, nitrogen, oxygen, phosphorus, and sulfur.
BIOGEOCHEMICAL CYCLES:
Elemental substances are examples of matter, which are transferred from one form to another in the ecosystem. The movement of these elements between living organisms and their environment is termed biogeochemical cycle.Elements that are involved in the biogeochemical cycle are as follows: water, carbon, nitrogen, oxygen, phosphorus, and sulfur. This means that these six elements move between living and nonliving sources. Water makes up the most part of the body of living organismsCarbon is a major component of the organic matter of living organismsNitrogen is a key component of nucleic acids and also found in the soil as nitratesPhosphorus is the key component of the energy molecule- ATP in every living organismSulfur is a component of some amino acids, and also released into the atmosphere during burning.Learn more: https://brainly.com/question/1204069
What is the name often given to the force exerted by the first object on a second object?
A parents traits are inherited by offspring in the form of dna carried on
Answer:
Is this a true or false question? If so, this statement is true.
Explanation:
Plant 1 was grown in the dark. Plant 2 was grown in the light.
What can you conclude about the growth of these plants?
A. The environment can affect physical features.
B. The environment determines all physical features.
C. The environment plays no role in the growth of plants.
D. The environment will always allow all types of plants to grow
Describe the similarities and differences between plant and animal cells
Answer:
Plant cells have a cell wall and a cell membrane.
In plants, the cell wall surrounds the cell membrane.
Animal cells have a cell membrane but no cell wall.
Plant cells have cytoplasm.
Both have a nucleus.
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Which of the following is most likely the reason why there are more long beaked woodpeckers than short-beaked woodpeckers in an environment?
The long-beaked woodpeckers are more attractive to predators.
The long-beaked woodpeckers have more flight stability.
The long-beaked woodpeckers can reach more insects in tree bark.
The long-beaked woodpeckers reproduce in smaller numbers.
Answer:the answer is c
Explanation:as having a longer beak allows the woodpecker to reach more bugs within the tree meaning they can survive and also provide for the offspring with the more insects it can reach
Which gas is increasing in content and causing concern about the Earth's energy
budget?
Carbon Dioxide
Nitrogen Gas
Argon Gas
CFC gases
Answer:
Carbon Dioxide
Explanation:
Answer:
Carbon Dioxide
Explanation:
animals and humans breath in air and they create carbon dioxide which trees need so it's good but people use factory and stuff that makes mass carbon dioxide which is not good.
What is the answer please help no links I will report
Answer:
Limpets
Explanation:
Since the arrows represent flow of energy, and there is no path of energy from fish to limpets, limpets won't be affected at all.
can you help me thanks DONT PUT LINKS PLZ!
Why dos a single X chromosome that carriers the allele for red-green color blindness cause males to be color blind but doesn’t cause females to be color blind?
Answer:
Because females have two X chromosomes and the red-green color blindness allele has to be in both chromosomes to cause the woman to be color blinded. In the case of males, they only have one X chromosome, so if the allele for red-green color blindness is in the chromosome, the male will be color blinded since there is no other X chromosome with the normal allele as in females.
Explanation:
What determines if a person's sex is the genes X and Y. A sperm carries one of these two genes. When it meets the egg, this one will give the other chromosome, which is always X. So, if the sperm carries the X chromosome, the result, when the egg's fertilized, will be XX, which will give the information to develop a female human. If the sperm carries the Y chromosome, the result will be XY, which is a male.
As females are XX, if the red-green color blindness gene is in one of them, the other chromosome, which does not have this allele, will prevent the woman from being color blinded. We can say that women have a backup copy that prevents color blindness.
In the case of males, as they are XY, there is no extra copy that can prevent them from being red-green color blinded, so when a male has an X chromosome with this allele, they will be color blinded. In the case of women, they will only be carriers of the gene and will be color blinded if the two X chromosomes have the red-green color blindness allele.
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Answer:
what do they mean when they say "spheres" ???
It could be the lithosphere (land) hydrosphere (water) and the atmosphere (air)
Explanation:
if the water molecules are evaporating then there's obviously water involved (hydrosphere)if the water started to evaporate from the ground then lithosphere is involved, too. and the water is rising into the atmosphere, also.
A forest fire destroys an area. Asmall population of trees and a large population of birds are both affected.
Which type of limiting factor causes this?
A. density dependent
B. Hensity independent
C.opulation dependent
D. opulation independent
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Why does the lake need to be older than the canyon for the spillover theory to work?
Answer: Over thousands of years, the water filled one basin and then spilled over into the next, like a series of bathtubs overflowing.
Explanation:
which reason best explains why carbon is able to form macromolecules?
A. carbon is a very large element
B. carbon can bond with many elements
C. carbon is found in all living things
D. carbon is found in energy storing molecules.
During a hectic moment in the ER, Robin received a needle stick from a hyperdermic used on the patient. She later was diagnosed with Hepatitis B. This would be an example of what type of transmission?
Answer:
Fomite Transmission
Explanation:
The type of transmission used as an example in this scenario would be Fomite Transmission. This is when an inanimate object that has been in contact with a disease becomes contaminated and then comes into contact with an individual. In this scenario, once the needle was used on the patient that had Hepatitis B it immediately became contaminated. Then by accidentally being stuck by the needle, Robin became infected as well as the disease was transmitted from the needle into her bloodstream.
Which of the following parent combinations could result in a type o blooded child?
Answer:
1 parent heterozygous A and 1 parent heterozygous B
Explanation:
One parent already has O and then the other is AB so its not a full dominate
1 parent heterozygous A and 1 parent heterozygous B could result in a type O blooded child. So, the correct option is D.
What is Blood group?A blood type is defined as a classification of blood that is based on the presence and absence of antibodies and inherited antigenic substances on the surface of red blood cells. These antigens can be proteins, carbohydrates, glycoproteins, or glycolipids, depending on the blood group system.
There are 4 main blood groups which are- A, B, AB and O. Blood group is determined by the genes inherited from the parents. Each group can be RhD positive or RhD negative, which means there are 8 blood groups in total.
For the above example, when Heterozygous A blood group parents crossbreed with Heterozygous B blood group parents that is AO and BO respectively. AB, BO, AO and OO blood groups from the cross produce offspring.
Thus, 1 parent heterozygous A and 1 parent heterozygous B could result in a type O blooded child. So, the correct option is D.
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The effect of cholesterol on membrane fluidity at physiological temperatures is to Choose one: A. prevent lateral movement of phospholipids and thereby decrease membrane fluidity in that region. B. maintain membrane fluidity due to exclusion of saturated glycerophospholipids. C. rigidify membranes by forming a complex that bridges the inner and outer leaflets. D. maintain membrane fluidity through its disruption of fatty acid packing.
Answer:
The correct answer is D. maintain membrane fluidity through its disruption of fatty acid packing.
Explanation:
Cholesterol is a steroid lipid and is a constituent of biological membranes. It regulates the fluidity of the membrane (so, option C is not correct). Since cell membranes are composed of another type of lipids, the phospholipids, which form a bilayer, cholesterol distributes between the phospholipid tails and avoids these molecules pack each other forming rigid clusters. Thus, the option which better explains the effect is D. maintain membrane fluidity through its disruption of fatty acid packing.