Answer:
Capillaries. Slower speed enables more time for oxygen, nutrient, and waste transfer to occur at the level of the tissues.
Explanation:
This is a physical property of the circulatory system. Capillaries collectively have the highest cross-sectional area, and therefore have the lowest flow rate (by Poiseuille's Law).
Answer:
In cellular biology, active transport is the movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration—against the concentration gradient. Active transport requires cellular energy to achieve this movement.
Explanation:
Hope this helped you! :D
Then the brown beetles die out and there are more green beetles because they have higher chances of surviving
Answer:
When a population is in Hardy-Weinberg equilibrium for a gene, it does not evolve and allelic frequencies will remain the same for generations.
There are five basic Hardy-Weinberg assumptions: there is no mutation, the mating is random, there is no gene flow, the population size is infinite and there is no selection.
If the assumptions are not met for a gene, the population can evolve for that gene (that is, the allelic frequencies of that gene may change).
The mechanisms of evolution are violations of the different Hardy-Weinberg assumptions: mutation, non-random mating, genetic flow, finite population size (gene drift) and natural selection.
