B, because it's not an advantage for something to be expensive and time consuming
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:
Passive transport uses no energy, so an example of that would be diffusion. So your answer would be D, diffusion.
Answer:
I believe it is B. Plants store food for later use.
Explanation:
During the summer when there is abundant sunlight, the plants will store energy to use to survive in winter when sunlight is more scarce.
