I’m pretty sure it’s D! Brainlyist ???
Answer:
The main purpose of the circulatory system is to transport blood, oxygen, nutrients and hormones to and from different cells and tissues throughout the body.
Explanation:
This system works hand-in-hand with the respiratory system to facilitate the exchange of oxygen and carbon dioxide within the blood per the alveoli in the lungs.
Answer:
C. disruptive natural selection
Explanation:
Disruptive selection is a type of natural selection in which extreme phenotypes are favored over intermediate phenotypes in a population. Environmental change is a major factor that can bring about disruptive selection. The individuals with the extreme phenotypes adapt well and are able to survive in the particular environment, while those individuals with intermediate phenotypes would hardly survive or be greatly reduced in number.
The gray rock outcrops and the brown soils of the Island favors the survival of mice with brown and gray fur color respectively. The fur colors of these two extreme phenotypes in the population of mice, have helped both varieties against Hawks as their main predators, hence establishing their existence on the Island.
Positive feedback is a control system that sends a signal to ( increase) a response.
Answer:
Process during which a double-stranded DNA molecule is ... This means that each of the two strands in double-stranded DNA acts as a template to produce two new strands.This allows each base to match up with its partner: each having one strand from the original DNA and one strand of new DNA