Identify the organs shown in diagram 24a and the hormone produced by the adrenal gland (24b). Explain adrenaline's role in the fight or flight response (24c). For diagram 25a, identify the ecosystem,

Here are the answers to the questions:

24.

a) The diagram shows the kidneys and adrenal glands.

b) The adrenal gland produces the hormone adrenaline (also known as epinephrine).

c) Adrenaline prepares the body for a "fight or flight" response by increasing heart rate, blood pressure, and blood glucose levels, and dilating air passages.

25.

a) The diagram shows a grassland ecosystem.

b) The producer here is grass (or plants).

c) The role of the lion here is that of a top predator or tertiary consumer.