B is your answer and explanation because I know ;)
The correct answer is 4) A dichotomous key is complete when each organism stands alone.
The statement about a dichotomous key that is true is "A dichotomous key is complete when each organism stands alone."
Scientists have the need to correctly identify organisms, animals, plants, and objects. For that to happen, they have dichotomous keys.
These tools help them to identify and give a correct name that differentiates from other objects and organisms. So the most important thing about the dichotomous key is the fact that it identifies an organism, species or objects with its scientific name.
Answer:
The cell structures which can be found in every cell are
DNA
Cytoplasm
The Cell Membrane
Ribosomes
Explanation:
The cell structures which are common to every cell whether prokaryotic or eukaryotic are
Deoxyribonucleic acid (DNA): DNA can be referred as the basic hereditary material for all organisms. In prokaryotes, DNA is not membrane bound whereas in eukaryotes the nucleus is membrane bound.
The Cell Membrane: The cell membrane comprises of phospholipid bi layers and other proteins. Cell membrane seperates the cell from the outer environment. It also acts as a barrier for imorting and exporting of materials inside and outside of cell.
Ribosomes: Ribosomes can easily be described as the protein synthesis factory.
Cytoplasm: The fluid material present inside the cell membrane which comprises of all the organelles.
