What is the source of energy in most ecosystems?
animals
plants
oxygen
sunlight

Imagine ? person stepping on a pin and pulling his or her foot way look at the réfléchir arc of the scenarios below

What is one function of the embedded proteins

Ascientist wants to determine the effect of a new type of gasoline. he fillsone car with normal gasoline and another identical car with the new gasoline.which is the control group? a. the new type of gasolineb. the car with the normal gasolinec. the car with the new gasolinethe amount of gasoline usedd. the amount of gasoline used