Answer:
A homozygous dominant brown mouse is crossed with a heterozygous brown mouse
B= brown mouse
b= black mouse
Bb= heterozygous brown mouse
Bb x Bb= BB, Bb, Bb, and bb 3:1 genotype
phenotype with 3 brown mouse and 1 black mouse offspring
Explanation:
It will transported across plasma membrane by simple diffusion. simple diffusion refers to a process by which molecules will pass across plasma membrane without the aid of channels located on the surface of the membrane. since the molecule identified was polar once it enter in hydrophobic region of the membrane it will not stick since this region is non-polar and therefore it will move easily across that region.
They use a formula and that formula is
People/Land Area=Population Density
I believe the example of an environmental variation in the above question is, A. Marge dyes her hair blue. Variation represents any difference between cells, individual organisms, or groups of organisms of any species caused by either genetic differences or by the effect of environmental factors. Environmental variation is the ability of an organism to alter its phenotype depending on environmental conditions.
