Answer:
<em>The correct option is B) Freshwater snails and small fish</em>
Explanation:
As we can see from the food web, the fresh water snails and the small fishes both feed on algae and water plants as their source of food hence, both these organisms feed on the same food.
Other options, like option C, is not correct because water boatman and water plants do not feed on the same sources. Water boatman feeds on reeds whereas water plants do not. Water plants will make their own food.
A. fission reactions within stars
Human Gene Therapy.
(It is all of these)
A. includes the insertion of genetic material into human cells for the treatment of a genetic disease.
B. Has been used for treatment of children who have severe combined immunodeficiency.
C. Has been used in a trial to treat familial hypercholesterolemia.
Can be injected by IV, shots that go into the vein to carry the gene all the way around the human body system, and possibly pills (possibly).