D. living things as a reservoir
Answer:
Keratin serves important structural and protective functions, particularly in the epithelium. Some keratins have also been found to regulate key cellular activities, such as cell growth and protein synthesis
The steps of investigative process include experiment, theory and observation.
<h3>What is investigative process?</h3>
Investigative process is defined as the scientific process that is used to generate a conclusion about a particular finding.
The steps of investigative process include:
Therefore, the steps of investigative process include experiment, theory and observation.
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<span> "to convert solar energy into chemical energy and then store that chemical energy for future use." AND </span><span><span>Chlorophyll, raw materials from the environment, water through its roots and carbon dioxide. Hope this answer helps!</span> </span>
Answer:
C
Explanation:
Animals do not have a cell wall so that eliminates B. They also cannot be an autotroph, the only organisms that can be autotrophy are algae and plants, so this eliminates D. I hope this helps:)