Answer:
A concentration gradient occurs when the concentration of particles is higher in one area than another. In passive transport, particles will diffuse down a concentration gradient, from areas of higher concentration to areas of lower concentration, until they are evenly spaced.
Explanation:
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<u><em>Answer:</em></u>
<em>The nucleus and ribosomes both involve messenger RNA (mRNA) during protein synthesis. The mRNA is made during transcription within the nucleus. The mRNA then travels out to the cytoplasm via a nuclear pore of the nucleus.</em>
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<u><em>Explanation:</em></u>
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The answer is : The rock cycle is driven by energy from the Sun as well as from the interior of Earth. The sun provides energy for surface processes such as weathering, erosion, and transport. This is the one of the major source of energy for the rock cycle. Weathering happens when there is a interaction with the air, water and organism which cause the rock to break down, and the pieces of rock are carried away by wind, moving water, etc. through erosion.
Answer:
B. False
Explanation:
No; only a small percentage of variants cause genetic disorders—most have no impact on health or development. For example, some variants alter a gene's DNA sequence but do not change the function of the protein made from the gene.
