D bc active transport is basically the opposite of osmosis and diffusion
Proteins is made up of a sequence of an amion group, a carboxyl group, a hydrogen atom and a side chain bonded to the central carbon atom.
Answer:A
The original source of all energy in a food web is the sun. the sun provides light energy that producers use in photosynthesis. animals eat the producers and other animals eat those animals. the energy flow goes up the web, but it all originated at the sun
B. 6CO2 + 6H2O ------> C6H12O6 + 6O2
I hope I helped!
