Do you get all the energy from a piece of fruit you eat?

a)yes, because all the energy is used for work.

b)no, because some of the energy is dispersed as heat.

Why is excretion necessary to maintain homeostasis?

Facilitated diffusion move large molecules and/or polar molecules across the cell membrane. what does facilitated diffusion use to do this?

As scientists have investigated evolution from a variety of fields, they have found that some of darwin's orginal ideas were inaccurate or incomplete. t explanation provided by evolution was updated each time to reflect the new information they found. what does this suggest about the theory of evolution? it has become a stronger and clearer theory as new information is collected.