Answer:
Circle - Phosphate group
Rectangle - Nitrogen base
Middle - Pentose sugar
Explanation:
Answer:
the nervous system uses electrical impulses to send signals through neurons, whereas the hormonal system uses chemical messengers transported into blood plasma to target cells.
Explanation:
Hope this helps.
Answer:
c. dissolved
Explanation:
the energy to be dissolved is not high.
From the insects and the worms they eat.