The answer is (b.) fertilization
The fertilization is the stage where the egg cell or the
so-called ovum fused with the sperm cell which eventually leads the development
of the embryo or the zygote. The Embryogenesis starts when the zygote undergoes
mitotic divisions or also known cleavage process.
Answer:
b. Pleiotropy
Explanation:
The term “pleiotropy“ refers to a situation in which variants in a single given gene have a number of different, seemingly unrelated effects in the resulting phenotype.
For instance: patients with mutations in the COL1A1 gene (codifying for collagen alpha-1 chain) may present with a genetic disease called “osteogenesis imperfecta”, characterized by (among other findings) bluish sclera, brittle bones, and deafness. All those disparate clinical manifestations may be traced back to the inability of the body to produce normal type 1 collagen.
Transform boundary, meaning that they are pulled horizontally
Energy moves from one trophic level to another as organisms feed on one another.
Explanation:
Energy flows from one trophic level to another in a food chain. according to the ten percent law, only ten percent of the total energy passes onto the next trophic level. While studying the energy flow model two aspects should be taken under consideration. Firstly, the flow of energy is unidirectional and passes on from autotrophs to primary consumer and then secontary, tertiary so on. Secondly the amount of energy decreases at succesive trophic level.
Answer:
Permeability of plasma membrane is the rate of passive diffusion molecules across the biomembrane.
