Answer:
The nucleus regulates all activities which occur in the entirecell body. The Nervous system regulates all the activities of the entirehuman body.
Explanation:
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Answer:
The oxygen in inhaled air passes across the thin lining of the air sacs and into the blood vessels. This is known as diffusion. The oxygen in the blood is then carried around the body in the bloodstream, reaching every cell. When oxygen passes into the bloodstream, carbon dioxide leaves it.
Explanation:
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Which of the following best describes the molecular structure of ovalbumin?
A group of six carbon atoms joined in a ring.
<u> A chain of amino acids folded and twisted into a molecule.
</u>
A set of three fatty acids attached to a molecule of a glycerol.
A sequence of nitrogenous bases attached to a sugar phosphate backbone.
Answer:
In terms of genetic variation, allelic richness (A) estimated through rarefaction resulted in 1.6–3.0 mean alleles per colony, and no private alleles were found. Mean genetic diversity (HE) was 0.525 (SD = 0.11), with values ranging from 0.276 (SD = 0.25) to 0.618 (SD = 0.09).
Explanation:
Utah prairie dog (Cynomys parvidens), and Mexican prairie dog (Cynomys mexicanus)—all of which may be considered rare (Hoogland 2006a). After 200 years of shootings, poisonings, conversion of habitat, and more recently plague, prairie dog numbers are a fraction of what they once were. Two of the species (Utah and Mexican) are listed as threatened or endangered under the Endangered Species Act (ESA).
