Plz no bit. yl stuff, just answers Sickle cell anemia is a disease that affects the circulatory system. It can be passed from parent to child. Which of the following indicates the significance of this disease?
A. It shows that a disease can cause genetic changes.
B. It is a reflection of how genetic factors affect health.
C. It shows how public health is affected by environmental factors.
D. It indicates how a toxin can play a role in the development of disease.

Question 1 which of the following allows cells to take in fluids? a. phagocytosis b. pinocytosis c. exocytosis d. receptor-mediated endocytosis question 2 molecules move along their concentration gradient (from areas of high concentration to low concentration) using active transport mechanisms. a. true b. false question 3 which of the following powers active transport (ie. provides the energy for)? a. glucose b. transport proteins c. atp d. phospholipids question 4 what type of lipid is a major component of the plasma membrane? a. cholesterol b. phosopholipids c. proteins d. triglycerides