What is the total amount of energy used for plant growth?
Primary productivity
Energy productivity
Gross primary productivity
Net primary productivity

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

_tissues respond quickly to outside stimuli a) epithelia b)nervous c)muscular d)muscular and nervous

If people from georgia have just experienced an extremely cold winter the last couple of months, what would the climate most likely be classified as? polar temperate maritime tropical