<span>I believe the answer is: D. proteins
The main functions of these proteins is to allow specific substance to pass through the membrane of the cells which needed for the energy formation for cells'functions.It created through the combination of more than 20 amino acids with different functions.</span><span />
Planting only red pine trees to replace native hardwood forests cut for lumber.
Answer:
Turn off the faucet if you aren’t using it atm,
Not pollute the water with gasoline
Explanation:
These will help preserve earth water supply because then you aren’t wasting the water or making it undrinkable.
These substances are called reactants.
Answer:
Stimulation of thoracic or lumbar spinal regions; impulse reaches chain ganglion; acetylcholine release
Explanation:
