The molecular clock is a scientific technique which presents a means of estimating evolutionary rates and timescales using genetic data. It uses mutation rate of biomolecules when two or more life forms diverged to estimate the time. Answer is B.
Answer:
According to the pyramid of energy, the energy content is maximum in autotrophs or producers. Autotrophs are the plants which prepare their food by photosynthesis. They are the primary producers and primary source of food energy. The flow of energy is unidirectional from producer to consumer level.
Explanation:
Answer:
The adequacy of this fit between a person and the environment can affect the person's motivation, behavior, and overall mental and physical health163; that is, if the fit is optimal, the individual's functioning may be facilitated; if it is unsuitable, the individual may experience maladaptation.
Explanation:
Which is a <span>post-zygotic barrier to reproduction. </span><span>The postzygotic reproductive barrier is a component that lessens the feasibility or regenerative limit of half-breed posterity. Half-breed zygote variation from the norm is a sort of postzygotic hindrance in which cross breed zygotes neglect to develop regularly.</span>
