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BaLLatris [955]
3 years ago
10

Mutations are the source of all new genetic material in a species. a. True b. False

Biology
1 answer:
snow_tiger [21]3 years ago
8 0
This is true, however recombinations can also cause new alleles
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In the space provided below draw electron dot diagram's for the following atoms nitrogen ,hydrogen , oxygen ,and carbon
earnstyle [38]
Here you go. Hopefully this helps

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The anatomy and physiology instructor is discussing adrenergic receptors with the nursing class. What adrenergic receptor would
Lesechka [4]

Answer:

Alpha-1

Explanation:

Adrenergic receptors are the integral proteins present in the postsynaptic plasma membranes. These receptors are activated when the neurotransmitter norepinephrine and the hormones norepinephrine and epinephrine bind to them. The alpha 1 adrenergic receptors are found in the smooth muscle fibers of blood vessels that serve the salivary glands, skin, and kidneys. These receptors are also found in the radial muscle of iris of the eye as well as in the sphincter muscles of the stomach and urinary bladder.

They exert excitatory effect and lead to contraction of smooth muscles of the blood vessels, dilation of pupil, and closure of sphincters of the bladder.

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3 years ago
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EastWind [94]
Hello!

I believe the best answer to your question would be Option C) excess carbon dioxide.

Hope this helps, and have a lovely rest of your day :)
4 0
3 years ago
What was the second organism to be found here on planet Earth?
Aleks [24]

Answer:

Prokaryotes

Explanation:

  • There are two types of basical organisms .
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  2. Prokaryotes-(Multi cell)
5 0
2 years ago
Read 2 more answers
How did adults slaves prepare children for the challenges of a life of slavery
Semenov [28]

Answer:

From the 16th to the 18th centuries, an estimated 12 million Africans crossed the Atlantic to the Americas in the trans-Atlantic slave trade. Used on plantations throughout the United States, Latin America and the Caribbean, enslaved Africans were shipped largely from West Africa. With an average life span of five to seven years, demand for slaves from Africa increasingly grew in the 18th century leading traders to take their supply from deep within the interior of the continent

Explanation:

Slave parents, in turn, sought to instill in their children a sense of loyalty to the slave community as a whole. They taught children to refer to other girls and boys as sister and brother

5 0
3 years ago
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