I think because humans have sweat glands in their skin that help cool the body by evaporation. Dogs don't have sweat glands but they have extensive blood vessels in their tongues that allow for heat to transfer. Panting helps move air across the tongue which carries away heat from the dog's blood.
Answer:
Explanation:
The diagram attached will help you and the answers can be taken from the picture
D- species
A biological species is a group of organisms that can reproduce with one another in nature and produce fertile offspring.
<span>It's Denitrification: In the absence of oxygen bactaria break down nitrates releasing nitrogen back into to the atmosphere and using the oxygen for their own respiration</span>
