Answer:
The answer is A
Explanation:
It is logical because the balloon lets the student see how much gas is released in the reaction. the balloon inflates with invisible air the student will normally not see.
Answer:
To regulate water balance in the body
Explanation:
The kidneys are two bean shaped renal organs which perform a host of functions for the body such as regulating fluid balance, filtering minerals from the blood etc. Among their functions is the regulation of water balance in the body through the antidiuretic hormone.
When an athlete completes a physical activity and sweats a lot, the kidney reacts to the loss of water by sweat by adjusting urine output causing the body to produce lower and more concentrated urine.
Answer:
A. Hypothesis
Explanation:
A hypothesis is a well-tested, scientifically supported statement that explains how something works.
Answer:
No
Explanation:
They cannot survive in a world without animals they need the animal kingdom.
