Answer:
A negative feedback loop is a reaction that causes a decrease in function. It occurs in response to some kind of stimulus. Often, it causes the output of a system to be lessened; so, the feedback tends to stabilize the system. This can be referred to as homeostasis, as in biology, or equilibrium, as in mechanics.
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Scales of a fish, I kind of read or heard people getting drafts of fish skin which might be the same.
Answer:
a. Frequency of D = 0.223
b. Frequency of Dd = 0.347
Explanation:
n= 131 students
Dimples (DD or Dd)= 52 students
No dimples (dd)= 79 students
Applying the Hardy–Weinberg equilibrium, the frequency of the recessive allele d is found by:

d=0.777
Therefore, the frequencies of the dominant allele, and the heterozygous genotype (Dd or dD) are:

a. Frequency of D = 0.223
b. Frequency of Dd = 0.347
The main factor would be the amount of vegetative matter the moose could consume. Other factors would be competition with other species over food source as well as genetic diversity in the case of disease, and other tertiary animals that prey on moose besides wolves.