Astraight line of energy flows is a food web or a food chain?

The use of dna as evidence in criminal investigations became possible because of the

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

How are gross production and net production different? a. net production is always greater than gross production. b. net production is always less than gross production. only animals have net production. d. only plants have net production. select the best answer from the choices provided