Hi
Firstly, you have to try to argument something logical, so, take on count <span>there should be a correlation between the two: for instance, as the temperature increases, the rate of enzyme activity increases and take into consideration the fact that high temperatures denature enzymes hence they will no longer be effective in catalyzing reactions. In this way, you could do a great job.</span>
"Mechanical" would be the kind of reproductive isolation among the choices given in the question that has been observed in these two species. The correct option among all the options that are given in the question is the first option or option "A". I hope that the answer has come to your help.
Answer:
D. as an arrangement of four chemical bases
Explanation:
Our DNA is made up of 4 chemical bases (adenine, thymine, guanine, cytosine).
Chitin - part of insects hard body and part of fungus
Cellulose - part of plant cell walls
Pectin - also part of plant cell walls
