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shepuryov [24]
3 years ago
13

Control of respiratory processes is similar to control of cardiovascular in that . . . a. norepinephrine on alpha receptors caus

es bronchoconstriction b. epinephrine on beta 2 receptors causes bronchodilation c. somatic motor neurons release acetylcholine onto nicotinic receptors at ganglionic synapse d. alveolar radius can be regulated similar to capillary radius
Biology
1 answer:
erica [24]3 years ago
3 0

Answer:

b. epinephrine on beta 2 receptors causes bronchodilation

Explanation:

This is because epinephrine is an hormone and neurotransmitter that stimulate beta 2 receptors which causes signaling and their in presence in airway smooth muscle causes bronchodilation, which counter the activation of the M3 muscarinic receptors in cardiovascular. When stimulate in skeletal muscles it can lead to increased contractility and also to muscle tremors.

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Answer:

late 14c., "fill with disease, render pestilential; pollute, contaminate; to corrupt morally," from Latin infectus, past participle of inficere "to stain, tinge, dye," also "to corrupt, stain, spoil," literally "to put in to, dip into," from in- "in" (from PIE root *en "in") + facere "to make, do, perform" (from PIE root *dhe- "to set, put").

Explanation:

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Homologous pairs of chromosomes are lined up independently of other such pairs during _____. Homologous pairs of chromosomes are
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Answer:

Homologous pairs of chromosomes are lined up independently of other such pairs during <u>metaphase I.</u>

Explanation:

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The division begins just after the chromosome DNA has replicated in the S phase. Each chromosome is made up of two identical sister chromatids joined by their centromere. However, chromosomes are not kept separate in the nucleus, but instead bind to their homologous partners. This union called synapse, occurs during prophase I.

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During anaphase I, the members are directed to the opposite poles of the cell. Telophase I, this phase begins with the arrival of chromosomes at the poles and with the formation of a nuclear envelope around each group of chromosomes. During Profase II, the nuclear membrane (if formed during Telophase I) dissolves, and spindle fibers appear.

The first meyotic metaphase and anaphase is usually completed in a short time to give rise to the phases of the second division (metaphase II and anaphase II) , which is a mitosis during which the centromeres divide and the chromatides move towards opposite poles to become gamete chromosomes. In telophase II, cytokinesis separates cells.

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