Answer:
fother Aa
mather aa
Explanation:
the top are not AA so that means the father is Aa because the ones below are aa
In fish, the heart only has one atrium and one ventricle. The oxygen-depleted blood that returns from the body enters the atrium, and then the ventricle, and is then pumped out to the gills where the blood is oxygenated, and then it continues through the rest of the body.
We find significant soil pH neutralization by afforestation—afforestation lowers pH in relatively alkaline soil but raises pH in relatively acid soil.
Answer: B) Solar System Planets
Explanation: I don’t know
Answer:
The correct answer is "control".
Explanation:
The control group of a clinical trail is a group of individuals that unknowingly are receiving a substance that have no therapeutic effect (placebo), instead of receiving the treatment. Control groups serve to determine the effectiveness of the drug and to monitor the psychological effect of receiving a substance with no therapeutic effect.
