An amino acid is given by the general formula
R-CH(NH2)-COOH
where R group varies.
Answer:
A. Plant cells have cell walls and chloroplasts, Animal cells do not.
Explanation:
<span>The memory test that would most effectively reveal that mr. marchman, at age 65, still remembers many of his high school classmates, is RECOGNITION test. </span>Recognition memory <span>is the ability to recognize previously encountered events, objects, or people.</span>
The pollution from the Industrial Revolution darkening the trees. After the trees darkened from all the soot in the air, the white moths were easier to see and more vulnerable to predators. The dark moths blended into the dark tree bark.
