Answer:
When oxygen levels in the blood decrease, the respiratory center sends signals to the diaphragm to increase the rate at which it contracts and relaxes.
Explanation:
Answer:
As a real world application, this can be beneficial in the process in which a farmer would grow their plants. If they would the process that provided the healthiest, biggest plants, they would choose that to fertilize with.
Explanation:
Answer:
B is the answer for sure.
non-living factors in an ecosystem are things that are not alive. like so rocks, water, air, soil and sunlight.
