What are the options?
Explanation:
Answer:
I'm going to say nuclear power plants.
Explanation:
I heard that this generates electricity. I hope this helps! Keep learning! :)
Concentration gradient across the membrane. Proteins in the membrane allow specific molecules through, passively.
Homologous structures are common structures in different species that perform different functions and may have look similar in structure.
Example- The different animals have bones that appear very similar in form and function and seem to be related.
