<span>race is not a defined term in biology and cannot solely be explained by different groups having different genes</span>
A. Photosynthesis and cellular respiration
B. Cellular respiration and decay
C. Decay and fossil fuel formation
Explanation:
Photosynthesis, cellular respiration, decay and fossil fuel formation are all processes that are part of the carbon cycle.
In the carbon cycle, carbon in different forms moves in the environment.
- During photosynthesis, green plants use carbon dioxide gas to manufacture their own food.
- Cellular respiration release carbon dioxide as waste product into the atmosphere.
- When plants and animals dies and decay, carbon dioxide is release from their tissues by the activities of decomposers.
- Fossil fuel formation removes carbon by accumulation of the organic matter of plants and animals.
Learn more:
Biogeochemical cycle brainly.com/question/3509510
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After sensing a drop in calcium levels in the body,parathyroid hormone from the parathyroid glands will be secreted in a negative feedback mechanism of homeostasis
first the parathyroid hormone stimulates release of calcium ions from the bone through the process of bone reorption
then the parathyroid hormone will reduce urinary excretion of calcium by increasing its re absorption in the nephron
finally , the parathyroid hormone will increase the rate of vitamin d synthesis in the small intestine to yield more calcium
Answer: underground) this is correct
