Answer:
b.) diffusion
Explanation:
Gas exchange is occur through the diffusion across the surface.
Diffusion:
It is a process in which gas exchange is occur through the concentration gradient. Gas molecules are moves from region of high concentration to the region of lower concentration.
Example:
In blood the concentration of oxygen is low and carbon dioxide is high while the air in lungs is high in oxygen concentration and low in carbon dioxide concentration. This concentration gradient leads to the exchange of gases in respiration. During respiration oxygen gas is intake while carbon dioxide is released.
D. There is not a point where the car doesn't move because the line didn't go flat at all so the car kept moving.
C. The velocity is postive
B.The average velocity is 50m/2sec
A.The graph tells us that the car didn't stop moving and the car didn't make kept moving forward it didn't go back
It is a fact that nuclear energy is converted into thermal energy in the core of a nuclear reactor. This is because it is part of a power plant fission act, where nuclear energy heats up water in a nearby vicinity.
Answer:
a. He is missing a control group of mice that did not receive the new antibiotic.
Explanation:
In any experiment especially experiments testing effectiveness of a drug, there should be a control group.
The importance of a control group is to minimize the effects of other variables other than the independent variable hence increasing reliability of the results.
in this case, a group of mice that did not receive the new antibiotic would have served as the control group.
3 nucleotides per amino acid.
<span>5,000 amino acids. (assuming no stop codon).
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