Question 2 of 9
a small percentage of the body’s iron supply circulates freely in the blood, bound to a protein called transferrin. transferrin binds to specific proteins on the surfaces of a cell's plasma membrane. the cell then ingests the transferrin by forming a pit, which becomes a vesicle. which of the following best describes how transferrin is transported across the plasma membrane?

a.
exocytosis

b.
pinocytosis

c.
phagocytosis

d.
receptor-mediated endocytosis

Some mining processes involve removal of large areas of earths surface in the mined region this practice causes severe environmental damage by allowing which natural process to accelerate in the affected areas? a. precipitation b. erosion c. migration d. condensation

Albinism is an inherited genetic disorder. explain what it is meant by inherited genetic disorder

Research question: why are the carrots that grew on the left side of the garden larger than the carrots that grew on the right side of the garden? which hypothesis is based on this research question? a comparison of people with gardens to people without gardens will show who is likely to live longer. b. carrots are thought to be good for your eyesight and should be eaten regularly. c. carrots that are provided lots of sunlight grow to a larger size than carrots grown in the shade. d. eating fresh vegetables every day is a healthy thing to do.