Answer:
weakness of core muscle can lead to chronic back pain
The role of mass extinction in evolution. At the most basic level, mass extinctions reduce diversity by killing off specific lineages, and with them, any descendant species they might have given rise to. ... But mass extinction can also play a creative role in evolution, stimulating the growth of other branches.
Answer:
volcanoes, hurricanes, and earthquakes
Explanation:
Answer:
The red box farthest to the right
Explanation:
The red box on the far right presumably shows the oxygen the plant is giving off as a byproduct of photosynthesis, which the plant is shown to be carrying out. Humans need oxygen to breathe, as they are aerobic organisms.