<span> parathyroid hormone (PTH) </span><span>increases osteoclast activity to release more calcium ions into the bloodstream.
In short, Your Answer would be Option C
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Answer:
Explanation:
it must be kept in place at least 10 hours after intercourse
Answer:
The correct answer is A.) Sister chromatids are pulled apart.
Explanation:
This is because during Anaphase II in Meiosis, the sister chromatids are pulled apart.
Chromosome pairs line up during Prophase I. <em>Not B.</em> When the chromosome pairs pair up this is also Metaphase I. <em>Not C.</em> When chromosome pairs are pulled apart, Anaphase I is occurring.
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Answer:
D. Molecules called pumps function to control active transport.
Explanation:
Active transport is one of the two types of transport (the other being passive transport). It is the type of transport in which substances move against their concentration gradient i.e. from a lower concentration to a higher concentration. Hence, due to this, energy input in form of ATP is required by the cell.
However, the process of active transport makes use of certain molecules called PUMPS to control it. The pumps moves ions/molecules against their concentration gradient. An example is the sodium-pottasium pump which moves sodium ions from a region of low conc. to a region of high conc.
They use there fins to propel themselves
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