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Natalka [10]
3 years ago
13

You have been asked to help a top nutrition researcher conduct human experiments on vitamin

Biology
1 answer:
Tems11 [23]3 years ago
7 0
Give the real pills and placebo pills to both the girls and the boys.
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To revolve means to __________.
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move in a circle on a central axis.

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Decaying plant and animal matter returns nitrogen to the soil in the forms of, , which plants can take in and use
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The dead plants and animals are the form of organic nitrogen. Microorganisms utilize these materials and break them down and convert into nitrates, which is a utilizable form and is used by plants and animals. The process is called as nitrogen fixation. 
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What determines how chromosomes line up during meiosis?
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The spindle fibers will move the chromosomes until they are lined up at the spindle equator. Metaphase: During metaphase, each of the 46 chromosomes line up along the center of the cell at the metaphase plate. Anaphase: During anaphase, the centromere splits, allowing the sister chromatids to separate
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In parts of the United States Midwest, you can find fossils of ancient sea creatures. Some of these fossils could easily be mist
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The answer to this is C. The ancient fossils are a record of when shallow seas covered much of the united states. While the fossils are of organisms that are the precursors of many modern day organisms, changes in ocean geography and other factors eventually caused those older species to become extinct.
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When DNA is duplicated during mitosis:
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One completely new DNA molecule is formed it’s almost like having a baby
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