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tangare [24]
2 years ago
13

In Pennsylvania, wolves have been extinct for many years. They used to feed on white-tailed deer, but not that the wolves are go

ne, the population of white-tailed deer has exploded. This means that this community:______
a. Was under top down control
b. Was under bottom up control
c. Lacks a fundamental niche for wolves
d. Lacks a fundamental niche for deer
Biology
1 answer:
MArishka [77]2 years ago
3 0

Answer:

The correct answer is a: The community was under top-down control

Explanation:

Top-down control refers to scenarios where superior predators control the structure and dynamic of an ecosystem. These systems are affected by the presence/absence of the superior predator influences all the lower links in the trophic chain.  

In the exposed example wolves, that are considered to be the top predators, affected the white-tailed deer populations being the cause of its decrease.  As wolves used to feed on white-tailed deer, they kept these populations under control, but once the wolves got extinct, the deer population increased again. Probably, this explosion in the deer´s population also affected its lower link in the trophic chain.

 

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Answer:

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Since the offspring has both the allele for green and yellow seeds color but yet only green is expressed. This indicate that green allele dominated the expression of yellow allele thus, it can be concluded that green seed pods were dominant over yellow seed pods.

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