Which of these is a characteristic of all living things? a) responds to external stimuli b) absorb complex food molecules c) produce offspring by means of sexual reproduction d) use energy to actively move through the environment

Which best explains why viruses do not have special structures or enzymes that allow them to make their own food? viruses can use energy in living cells that they infect. viruses can replicate inside a host that they infect. viruses can cause contagious illnesses in host cells. viruses integrate their rna or dna into infected cells.

Surrounded by microtubules, located near the nucleus. (don't try to google it) (give answer only if u know)

Based on the data in your tables, did the light-colored moths have a higher or lower survival rate after the industrial revolution?