"Pheromones" is the one among the following choices given in the question that these messengers are called. The correct option among all the options that are given in the question is the second option or option "B". I hope the answer has actually come to your expected help.
Answer:
This appears to be a prokaryote.
Explanation:
There is no nucleus, so this has to be a prokaryotic cell.
Answer:
Natural selection can result in organisms that are more likely to survive and reproduce and may eventually lead to speciation.
Explanation:
B and c
Its because heavier objects have a higher gravitational force
Measure the amount of chemical used, measure the mass before and after
