Can some one me with this question.. which of the following is a unit of temperature? ?

Suggest why placing wheels under a heavy box reduces the neccessary force required to push it along at a constant speed.

Agroup of plant cells was exposed to radiation, which damaged the chloroplasts and caused them to lose function. if the mitochondria were unharmed, what would happen to the overall function of the plant cells? a. the cells would not be able to make food, but would be able to release energy from biomolecules. b. the cells would not be able to replicate dna, but would be able to break down waste. c. the cells would not be able to break down waste, but would be able to replicate dna. d. the cells would not be able to release energy from biomolecules, but would be able to make food.

How energy flows through each level in this energy pyramid. is all the matter and energy from one level transferred to the next level?