86 % of plants and animals
Answer:
The correct answer is - less efficient signaling.
Explanation:
Second messengers are the molecules that help in transferring the information in the form of intracellular signal that has come from external stimulus.
Second messenger molecules should be short-lived as the concentration of these molecules should be decreased fastly so the cell can be available for other stimuli mediated by the same second messenger.
With increased lifetime, signaling will be less efficient as another stimulus cannot be detected.
Thus, the correct answer is - less efficient signaling.
Answer:
DNA is double-stranded, so there must be equal numbers of C and G because they pair to each other on the complementary strands.
RNA is only single-stranded, so there can be any number of C and G. They don't pair to each other, because there's only one strand.
Answer:
The smallest living things are single cells, and cells are the functional units of multicellular organisms.
Explanation:
Based on the information provided within the question, from the answers provided the only statement that is one or the three parts of cell theory is that the smallest living things are single cells, and cells are the functional units of multi-cellular organisms. Which although phrased differently it is explaining that all living things are made up of cells, from the smallest one celled organisms to multi-cellular organisms like us.
The other two parts of cell theory are that all living cells come from pre-existing cells by a process called cell division and that the cell is the fundamental unit of structure and function in all living organisms. Which the other answers provided do not match.
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