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Nataly_w [17]
4 years ago
12

"Some sympathetic preganglionic fibers stimulate the adrenal medulla to release norepinephrine and epinephrine into the blood, p

roducing what is commonly called a "surge of adrenaline." True False
Biology
1 answer:
labwork [276]4 years ago
5 0

Answer:

True

Explanation:

Epinephrine and norepinephrine are the hormones secreted by the adrenal medulla and are also called adrenaline and noradrenaline, respectively. During stress conditions, the hypothalamus stimulates the preganglionic neurons of sympathetic division.

These preganglionic neurons stimulate the chromaffin cells to secrete epinephrine and norepinephrine to prepare the body for fight or flight response. The increased level of epinephrine and norepinephrine hormones in the blood is called “surge of adrenaline”

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A comparison of karyotypes from two carrot plants cloned from the same carrot root tissue should show that all cells of these ca
nadya68 [22]

Answer:

C. Diploid condition

Explanation:

A Karyotype is the pictorial display that shows chromosome arrangement and number in a cell. The Karyotype shows any abnormalities in the nuclear material (chromosomes). In a carrot plant that was cloned from carrot root, the clones should possess the same features as the original plant.

A Karyotype of both plants i.e. clone and the original plant should show that their cells have a diploid number of chromosomes i.e. Two sets of chromosomes. Since a carrot plant is a diploid organism.

5 0
4 years ago
Which type of fossil evidence helps determine the evolutionary relationship between two hominid species?
Triss [41]
The skull size of each species! 

It's the size of the skull specifically the jaw bones, that can help determine relationships of two hominid species.

Hope this helps!
8 0
3 years ago
Need help with this diagram
STatiana [176]
The answer to this is d
6 0
3 years ago
Where do reactants of photosynthesis come from? a. glucose b.we exhale them c. we inhale them from the atmosphere d.plants give
Ne4ueva [31]

Answer:

c

Explanation:

6 0
3 years ago
A massive bluegill fish kill was observed in a lake near a power plant during the winter months. It was determined that the plan
Savatey [412]

Answer:

Option B

Explanation:

Option D is incorrect, as increased photosynthesis would increase oxygen supply present, not carbon dioxide supply.

Option C is incorrect, as increased decomposition would increase carbon dioxide released and oxygen present is reduced, not increased.

Option A is unlikely as if this were the case, increased oxygen levels would enable bluegill fish to survive as well.

8 0
3 years ago
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