The expected frequencies are f(A1) = 0.9700, f(A2) = 0.0300
according to the Hardy-Weinberg model. For biologists studying a large flatworm
population in the lab, which Hardy-Weinberg condition is most difficult to meet
there is no mutation. It is called a genetic disorder in homozygous recessives
that causes death during the teenage years.
1. evolution sex produces offspring
Answer:
diffusion is process resulting from random motion of molecules by which there is a net flow of matter from a region of high concentration to a region of low concentration.
Explanation:
A familiar example is the perfume of a flower that quickly permeates the still air of a room. ion diffusion across a semipermeable membrane.
Petroleum, and carbon. It's an organic thing and has the sources provided.
Answer: depolarization; hyperpolarization
Explanation:
At resting potential (absence of stimulus), the cell membrane of a neuron is said to be polarized with a net negative charge within due to more potassium (K+) ions present than sodium (Na+) ions.
However, an impressed stimuli reverses the ions content as K+ ions flows out and quickly replaced by Na+ ions, resulting in a decrease in membrane potential and a more positive cell membrane. Thus, depolarization occurs.
An increase in the membrane potential (so that it becomes more negative) is called hyperpolarization.
