Answer:
c. secondary consumer level
Explanation:
Most secondary extinctions are due to direct bottom‐up effects: consumers go extinct when their resources are lost. Secondary extinctions due to trophic cascades and disruption of predator‐mediated coexistence also occur.
C because the heart pumps normally with a constant pressure but when it is lower it needs to push harder to get the blood to where it needs to go causing it to malfunction
The planets in our solar system orbit the sun because of its large gravitational force just like how the moon orbits earth