Answer:
4
Explanation:
Higher temperatures increase the energy and therefore the movement of the molecules, increasing the rate of diffusion. Lower temperatures decrease the energy of the molecules, thus decreasing the rate of diffusion
As the exercise progresses, muscular activity increases venous return. This increases the pre-load on the right ventricle. During venous exercise, the rhythmic pump of the muscles facilitates venous return by forcing the blood through one way valves that lead to the heart. Additionally, increased lung activity which creates a change in thoracic pressure that draws blood towards the heart. Regular exercises improves the venous return by increasing total blood volume, increasing end diastolic volume and increasing the size and contractile strength of the heart muscle.
They are animal organelles that remove wastes from the cell
Answer:
heritability
Explanation:
Heritability is a measure of the contribution of genetic differences among the individuals to their phenotypic differences. Individuals differ from each other in one or other phenotypic or morphological traits. These differences might be a result of differences in their genes or may be due to differences in their environment. Heritability measures how much the phenotypic differences among the individuals can be correlated to their differences in the genes.