I think the answer is Cell M<span>embrane.</span>
Answer:
Phenotype
Explanation:
The genetic composition of an individual or organism is referred to as its genotype. It represents the genes and the alleles present in the genome of the organism. Since genes regulate the genetic traits, the morphological expression of genotype is called phenotype.
For example, if T and t are the two alleles for the gene of plant height, the possible genotypes are "TT, Tt, and tt". Here, TT and Tt give tall plants while the genotype "tt" gives dwarf plants. Tallness and dwarfism is the phenotype associated with the above-mentioned genotypes.
Answer:
b.) diffusion
Explanation:
Gas exchange is occur through the diffusion across the surface.
Diffusion:
It is a process in which gas exchange is occur through the concentration gradient. Gas molecules are moves from region of high concentration to the region of lower concentration.
Example:
In blood the concentration of oxygen is low and carbon dioxide is high while the air in lungs is high in oxygen concentration and low in carbon dioxide concentration. This concentration gradient leads to the exchange of gases in respiration. During respiration oxygen gas is intake while carbon dioxide is released.
