Answer;
Cell
Explanation;
-The biological levels of organization of living things arranged from the simplest to most complex are: organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere.
-Cell is the basic unit and building block of life. It is bound by a cell membrane, and possesses a nucleus which acts as its brain. Arachnoidiscus ehrenbergi is an example of diatoms which are unicellular, therefore it is a cell.
Maybe it’s C not sure but I’ll check again I hope so
In this system, the process of digestion has many stages, the first of which starts in the mouth.
Digestion involves the breakdown of food into smaller and smaller
components, until they can be absorbed and assimilated into the body.
In a dehydration synthesis reaction, water is always formed as a by-product of the reaction.
<h3>What is a dehydration synthesis reaction?</h3>
A dehydration reaction in chemistry is a chemical process in which the reacting molecule or ion loses water. The opposite of a hydration reaction, dehydration reactions are frequent processes.
Dehydration synthesis is a chemical reaction that joins two smaller molecules by eliminating atoms from each of them. Organic compounds can be further divided into aliphatic and aromatic compounds based on the structure of hydrocarbons. The generation of new compounds with changes in atom bonding can occur in a variety of chemical processes involving organic molecules.
To learn more about dehydration synthesis reaction with the help of given link:
brainly.com/question/3156803
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