Two major types of organelle in eukaryotic cells, mitochondriaand plastids such aschloroplasts, originated as bacterial endosymbionts.
Answer:
D. Trees grow back after a forest fire.
Hydroelectricity comes from using the kinetic energy stored in the water. When the high pressure through the blades are released, its kinetic energy is transferred onto turbine blades to generate electricity.
<span>B. The algae and the spider crabs have a mutualistic relationship
</span>
<span>E. The spider crabs are parasites of the algae.
</span>
Rock is the answer to ur question
