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Paleontologists study and prove the change in form and functions of organisms throughout time in the fossil record.
Answer:
1.Carbon is the chemical backbone of life on Earth. Carbon compounds regulate the Earth's temperature, make up the food that sustains us, and provide energy that fuels our global economy. Most of Earth's carbon is stored in rocks and sediments. The rest is located in the ocean, atmosphere, and in living organisms.1 Feb 2019
2.Carbon is found in the atmosphere mostly as carbon dioxide. Animal and plant respiration place carbon into the atmosphere. When you exhale, you are placing carbon dioxide into the atmosphere. ... Carbon is found in the hydrosphere dissolved in ocean water and lakes.
The left atrium lacks a group of pace maker cells.
<span>b.) A more biodiverse ecosystem has a higher chance of adapting to species changes.
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<span>A living organism that helps protect the body. A barrier that destroys pathogens on the outer body surface, at body openings, and on inner body linings.</span>