Answer:
reacting with nitrogen and oxygen atoms in DNA, these compounds modify certain nucleotides so as to distort the normal pattern of base pairing. If these modified nucleotides were not repaired, they would allow an incorrect nucleotide to be incorporated during replication.
Explanation:
Answer:
The correct answer is -
the independent variable - if fertilizer added or not,
the dependant variable - the height of the plant and
the standardized variable - 200ml water
Explanation:
In this study, the student wanted to see the effect of the fertilizer on the growth of the plant so the independent variable is the treatment of the fertilizer as manipulated or the independent variable is the factor which is affected or changed purposely during an experiment while other variables remain constant.
The dependent variable is the factor that is based or depends on the independent variable and measured to see the effect which is the height of the plants in this case.
The standardized or the control variable is the variable that remains constant throughout the experiment, 200 ml water treatment is the control variable in this experiment.
trees do not fix N2 from air they fix oxygen with the help of N2 fixing bacteria . so trees do not fix N2
Answer:
Because of niche partitioning or differentiation.
Explanation:
Competition is a common ecological and evolutive process in nature. Competition might be intra- or interspecific. Competition between different species in a community or ecosystem might be due to the same resource use, or the same territory, shelter, etcetera. When a resource is useful for two or more species and limited, they compete to gain it.
The <u>principle of competitive exclusion</u> states that different species with the same requirements sharing the niche can not coexist indefinitely based on the same limited resource. <u>When two competing species coexist, this is because of niche partitioning or niche differentiation.</u>
Differentiation of effective niche is closely related to character displacement. Resource partitioning and differentiation allow both species to coexist more effectively.
In the exposed example, swallows and bats feed on insects and breed in similar habitats. However, swallows feed during the day, while bats feed during the night. Feeding at different times is an example of niche differentiation. In this way, both species can inhabit the same area and feed on the same source of food, but avoid competition.
