Which of the choices below does not involve tissue perfusion?
a. absorption of nutrients from the digestive tract
b. blood clotting
c. gas exchange in the lungs
d. delivery of oxygen and nutrients to, and removal of wastes from, tissue cells 4 points

The correct answer is option B. Blood clotting.

Explanation:

Tissue profusion is the path of blood flow or the lymphatic fluid with the help of the lymphatic system or the circulatory system to a tissue area or organ. It is helpful to transport nutrients or eliminating waste from the blood so the adequate tissue profusion is required to maintain.

All three options except blood clotting are related to the transport of nutrients, oxygen of removal of waste with the help of a circulatory system of the lymphatic system. Blood clotting is a region specific event and does not involve profusion.

Thus, the correct answer is option - b. Blood clotting.

the answer would be 2, if crossing over doesn’t occur 2 out of 4 of the daughter cells will have that allele.

hope this : )

sheep is a herbivore animal whereas grasshopper belongs to the class chordates but both of them feed on greens.  

if grasshopper and sheep feeding on a pasture land, i do not think both of them will have any impact on each other. however, the number of the species can make difference. since sheep feed on greens, there is a possibility there left no pasture land for the grasshoppers or they may get extinct.