The electrical conductivity of a substance depends on the ability of the in it to move.

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.

Explain how sequences of amino acids in proteins can be used to reveal relationships among organisms.

Crossing over and independent assortment are important activities that occur during meiosis. what is the significance of these activities