When you use knowledge and expierence to figure out why a lamp in your house is not lighting, you are using
a. classical conditioning
b. insight learning
c. innate behavior
d. trial-and-error learning

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.

Common commercial benefits of microorganisms include synthesis ofa. insulin.b. antibiotics.c. aspirin.d. antibiotics and aspirin.e. antibiotics and insulin.

What is hydroelectric power produced by?