Answer:
i think it is.. a mass of cancer cells
Explanation:
The answer is A, storing urine until it is eliminated.
The bladder stores urine, allowing urination to be infrequent and controlled. The bladder is lined by layers of muscle tissue that stretch to hold urine. The normal capacity of the bladder is 400-600 mL. During urination, the bladder muscles squeeze, and two sphincters (valves) open to allow urine to flow out.
Answer:
People drink water that has been contaminated by animal feces
Explanation:
Answer: Cell membrane
Explanation:
The cell membrane has the ability to transfer the molecules from the exterior of the cell to the interior of the cell.
The cell membrane is semi permeable which means only selected molecules will pass through the cell membrane.
The molecules and substances that are synthesized inside the cell needs to be transported from inside to outside via cell membrane.
Answer:
D. predator population will decrease
Explanation:
If the population of prey species decreases then the competition between the predator population will increase and natural selection will act on them. So nature will select those individuals among predators who are more fit and adapted and less fit individuals will die.
So a few year after the predator population will decrease as there are not enough prey to support the large population of predators which was present when prey were abundant. Therefore the correct answer is D.
