PLEASE HELP GUYS QUICK YOU GET 100PTS IF YOU D Unicellular organisms have multiple levels of organization while multicellular organisms have no levels of organization.

A: True B: False

Which of these substances does not protect against invaders in the nonspecific immune response? a. saliva b. mucus c. tears d. urine

What is genetic variation? -(a) each individual in a population has slightly different genes. -(b) some individuals in a population have more genes than others. -(c) each population of a species has slightly different genes. -(d)some populations of a species have more genes than others.

How does the burning of fossil fuels increase the greenhouse effect? by decreasing the absorption capacity of greenhouse gases by decreasing incoming solar radiation by releasing carbon dioxide into the atmosphere