The axis of the earth is tilted (ANSWER IS C). The equator is heated more than other areas because the sun's rays hit it directly.
As you move north or south of the equator, they fall slantingly or obliquely.
When summer is in the south and vice versa, the heat also changes with the earth's rotation.
The tropic of Capricorn and the tropic of Cancer alternately get direct sunlight.
Due to the uneven heating of the earth, wind and ocean currents are created, supporting life.
Microfilaments
Microfilaments are fine, thread-like protein fibers, 3-6 nm in diameter. They are composed predominantly of a contractile protein called actin, which is the most abundant cellular protein. Microfilaments' association with the protein myosin is responsible for muscle contraction. Microfilaments can also carry out cellular movements including gliding, contraction, and cytokinesis.
Microtubules
Microtubules are cylindrical tubes, 20-25 nm in diameter. They are composed of subunits of the protein tubulin--these subunits are termed alpha and beta. Microtubules act as a scaffold to determine cell shape, and provide a set of "tracks" for cell organelles and vesicles to move on. Microtubules also form the spindle fibers for separating chromosomes during mitosis. When arranged in geometric patterns inside flagella and cilia, they are used for locomotion.
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Answer:
Your answer is D) Release of energy.
<span>In the liver, bile salts
are formed. <span>Because
of their low surface tension, this contributes to the emulsification of fats found
in the intestine and their absorption from the GI tract. These are bile’s
components. It is because of the bile salts which give bile the ability to
emulsify, mix, lipid in the aqueous environment in the intestine. Bile is the
one responsible for the efficient digestion of lipids. Bile is secreted in the
gallbladder down to the small intestine. It then breaks dietary fats into
smaller particles called emulsification in the small intestine. The bile’s
function is in the completeness of the digestion and absorption of fat. </span></span>
