Answer:
Option (A).
Explanation:
The element mercury can persist in the environment and proves to be harmful for the living organism. The mercury persist in the lower organism and transfer to the higher organism by the process of biological magnification.
The compounds of methyl mercury are not harmful. The methyl mercury compound cannot cross the blood-brain barrier and does not affect the individual.
Thus, the correct answer is option (A).
Answer:
Zygote is the technical term for a fertilized egg/sexual reproduction.
Explanation:
In sexual reproduction, a haploid sperm from the male parent fertilizes the haploid egg from the female parent to produce what is called a diploid zygote. Zygote is the technical term for a fertilized egg.
Fog is near the ground and clouds are in the sky
A: pollution -prevention control
Because the allele for white fur is recessive, the only possible genotype for a white-fur mouse is ff.Because both parents can only pass down an fallele to the offspring, all of the offspring will have the ffgenotype aswell, resulting in 100% white-fur offspring.
