PLEASE HELP ASAP! Describe the relationship between endocytosis, exocytosis, and the endomembrane system of eukaryotes.

Microorganisms are involved in each of the following processes excepta. smog production.b. food production.c. infection.d. o2 production.e. decomposition of organic material.

According to this food web which of the following would be considered primary consumers

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