Answer:
endosymbiosis.
Explanation:
By the beginning of the 20th century, researchers thought that plastids and mitochondria could come from bacteria. These would have been ingested by primitive cells and live within them in symbiosis.
Ocean tides are caused by the gravitation of the Moon. Currents can be
formed by the flow of tidal water around the continental plates, or by a
difference in water temperature between large ocean areas. Surface
waves are caused by the wind. Abnormal waves can be created by the
tectonic movement of plates around and under the ocean floor (tsunamis).
So as you can see, the answer is (C) Gravity
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Answer: It's not blocked
https://www.khanacademy.org/science/high-school-biology/hs-human-body-systems/hs-body-structure-and-homeostasis/a/tissues-organs-organ-systems
Answer:
Durable
Explanation:
Durable because the listed category of goods can be kept for a long period of time .
Natural gas
explanation:
solar power, coal, and petroleum are used to power things (i.e. produce electricity)
