DNA contains the instructions needed for an organism to develop, survive and reproduce. To carry out these functions, DNA sequences must be converted into messages that can be used to produce proteins, which are the complex molecules that do most of the work in our bodies.
Answer:
Fossils of mollusks would be found in lower strata than that of arthropods
Explanation:
Fossils are found in different layers of sedimentary rocks. The fossils of organisms that evolved earlier are found in the lower strata while those evolved later are preserved as fossils in the upper strata. If mollusks evolved before arthropods, fossils of arthropods would be present in upper layers while those of mollusks would be found in deeper layers.
The best and most correct answer among the choices provided by the question is the second choice or letter B "<span>OIs are more frequent in the earlier stages of HIV. "</span><span>
</span> Infections<span> that take advantage of weakness in the immune defenses are called “</span>opportunistic.” The phrase “opportunistic infection” is often shortened to “OI<span>.”</span>
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Answer: B. Into the cell
Explanation: If a cell is put into a hypertonic solution, water will leave the cell. When a cell is put into a hypotonic solution, water will enter the cell. And a cell in an isotonic solution water moves into and out of cell at the same time.
