Proteins are macromolecules that are made up of the subunits that are called amino acids, there are 20 fundamental kinds of amino acids present. These varying combinations of them make different proteins needed for numerous functions.
Plants stored carbon in their tissues to use as energy and plants took in carbon dioxide and released oxygen through photosynthesis. Thus, the correct option is A and D.
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What is carbon cycle?</h3>
The carbon cycle is the ongoing process through which carbon atoms move back and forth between the atmosphere and the Earth. The amount of carbon in this system does not fluctuate because our planet and its atmosphere are a closed environment. The location of the carbon, whether it is on Earth or in the atmosphere, is continually changing.
Plants use photosynthesis to transport carbon from the atmosphere into the biosphere and move it up the food chain. They make sugar molecules by chemically combining carbon dioxide with oxygen and hydrogen from water using solar energy.
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Your blood vessels dilate which is called vasodilation, this allows your blood to carry out the excess heat from inside your body to the outside.
Answer:
The independent variable is "controlled" or held constant in the control group.
Explanation:
