Which kind of excretory waste is characteristic to fish, and what is the fate of this discharge?
a. Liquid uric acid, gets dissolved in water
b. Liquid Ammonia, gets dissolved in water
c. Gaseous Ammonia, gets dissolved in water
d. Semi-solid uric acid, sinks downwards
5. Food that human beings take might have some components that cannot be digested by the
human body. The accumulation of these undigested food particles in the body may lead to several
diseases in humans. What role does the human digestive system play in this?
(a)It helps the blood to absorb all these undigested particles.
(b)It helps to remove these undigested wastes from the body.
(c)It helps the enzymes to degrade these substances inside the body.
(d)It helps the microorganisms present in our body to feed on these undigested waste.
6. Which of the following constitutes a heartbeat?
(a) Filling of blood in the heart chambers
(b) The change in the speed of blood flow inside the heart
(c) Rhythmic contraction and relaxation of heart muscles
(d) The opening of the valves present in between the heart chambers
7. The human heart contains four chambers, two atria, and two ventricles. A partition separates
these chambers from each other. Why is the partition between these chambers necessary?
(a)To maintain the pressure of blood in each chamber of the heart
(b)To avoid mixing of oxygenated blood with the deoxygenated blood
(c) To increase the volume of all chambers so that more blood can be pumped
(d)To provide more volume to oxygenated blood than the deoxygenated blood
please answer all of them correctly
Answers
Answered by
0
Answer:
Your 6th question answer is
Answer:- A
Similar questions