Explanation:
Molecular biology is a branch of biology that concerns the molecular basis of biological activity between biomolecules in the various systems of a cell, including the interactions between DNA, RNA, proteins and their biosynthesis, as well as the regulation of these interactions.
Answer:
D. Columnar
Explanation:
Hint the root word is in the option and it is actually shaped like a column according to Epithelium - Wikipedia
Hope this helps : )
An example of disruptive natural selection is the presence of more light-colored moths in rural areas and to more dark-colored moths in industrial areas but FEWER medium-colored moths in either location. Thus, the correct option is A.
<h3>What do you mean by Natural selection?</h3>
Natural selection may be defined as the approach through which populations of living organisms acclimate and change.
Disruptive natural selection occurs when environmental conditions changes in two different ways or in two different locations.
Therefore, the correct option for this question is A.
To learn more about Natural selection, refer to the link:
brainly.com/question/14385908
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Answer:
Viruses are smaller and simpler in construction than unicellular microorganisms, and they contain only one type of nucleic acid—either DNA or RNA—never both.
Explanation:
yes i m agree with that Pure substances include only single atoms made of one element.
in chemistry , a pure substance that has only one kind of atom and cannot be broken into two or more simpler substance by physical or chemical means is an element . for ex. gold , silver , iron etc
