False; Melanin absorbs and dissipates the harmful UV rays that can damage the DNA of your skin cells. Keratin is a fibrous protein that helps to protect skin from abrasion.
allopatric: occurring in separate non-overlapping geographical areas.
sympatric: occurring within the same geographical area; overlapping in distribution.
(allopatric is the answer)
B. Natural selection
Natural selection can be
defined as the basic mechanisms of which goes along with migration, mutation
and genetic drift. Also, it is process in which an organism get adapted to its
environment by means of selectively reproducing changes in its genetic constitution.
Answer: a. Proton Motive Force
Explanation:
As a process presented in Bacteria, Mitochondria, and Chloroplasts, the chemiosmosis is important to generate ATP from ADP. In this process, we have two main components an electrical potential and a proton concentration gradient, that act in a process called proton-motive force. The ignition starts via the movement of electrons with different energy states via electron carriers.
Answer:
DNA segments are exchanged between two non-sister chromatids during meiosis I.
Explanation:
An exchange of chromosome segments or parts between non-sister homologous chromatids occurs which is also called crossing over. This crossing over occurs in the meiosis I that is responsible for the variation in the offspring produced. The formation of hybrid species occurs due to this exchanged of DNA segments between two non-sister chromatids.