The right answer is true.
Producers (also called primary producer) are the only living things to be able to occur alone. All other living beings must feed on organic matter in order to be able to manufacture the material of which they are made, which is why biology reserves the name of PRODUCERS to a single category of living beings, plants.
Answer:
propulsion of a sperm cells occurs due to the sperm's tail containing a large number of proton channels called Hv1 and It gets energy from the seminal plasma.
Explanation:
Answer;
pressure
Explanation;
Bone reabsorption is the process by which osteoclasts break down the tissue in bones and release the minerals, resulting in a transfer of calcium from bone tissue to the blood.
Pressure creates bone resorption by stimulating osteoclasts and granulation tissue through biochemichal events. Pressure does not cause bone resorption directly.
The by-product of the process of photosynthesis that was important because it altered the atmosphere in the Earth would be oxygen. Having oxygen in the atmosphere, allowed the aerobic organisms to adapt and evolve continuously. Even, today, oxygen is an essential substance in humans and animals.<span />