Consider the order of organs in the digestive system and their positions in the body. why do you think digestion is more efficient if you are sitting up, rather than slumped over or lying down?

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

Why should organisms reproduce more offspring than will survive? select all that apply.

Which of these is not an obstical to the future of space exploration? fundingresearch ideas technologytime