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MaRussiya [10]
3 years ago
9

In times of stress the adrenal glands secrete stress hormones such as

Biology
1 answer:
Levart [38]3 years ago
4 0
The adrenal glands respond to stress by secreting Epinephrine, and Norepinephrine. Epinephrine causes the blood vessels to narrow, and it also opens up airways in the lungs. Norepinephrine increases the heart rate and blood pressure, and it also causes the energy stores to release glucose.
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What is the biogeochemical cycle that describes the movement of oxygen within and between its three main reservoirs?
Komok [63]

Oxygen Cycle. Hope this helps

8 0
3 years ago
Which of the following statements is not true of antibody staining? Which of the following statements is not true of antibod
Free_Kalibri [48]

Answer:

The statement that is not true for antibody staining is it can provide information about gene expression.

Explanation:

Antibody staining is important aspect of applied immunology. Antibody staining is done to determine a specific protein in a given sample.Antibody staining is done by using fluorescent dyes and also by using specific enzyme such as horse reddish peroxidase,alkaline phosphatase.

         Antibody staining can be visualized with either fluorescent or radioactive labels. Antibody staining can be performed by western blotting method.Multiple antibodies can be used to stain different proteins.Antibody staining requires the hybridization of the complementary base sequence of the antibody and also the target protein to which it binds.

5 0
3 years ago
You are given a 1 liter bacterial culture in exponential stage of growth. The generation time of the bacteria is known to be 30
nydimaria [60]

Answer:

Option-A

Explanation:

A bacteria divides by binary fission which divides a parent bacteria into the two daughter cells and generation time refers to the average time difference between two consecutive generations.

The bacterial cell grows by the exponential function that is by 2^{number of generation} x initial population of bacteria.

In the given question,

<u>Initial population</u>

the initial population of bacteria - 2x 10³ per ml

So per liter, the bacterial population will be 2 x 10 ⁶

<u>Generation time</u>

1 generation time of bacteria is 30 min.

so 5 hours will have- <u> </u>\frac{300}{30}= 10 generations

<u>New bacterial population</u>

Using formula<u>  </u>2^{number of generation} x initial population of bacteria

2^{10} x (2 x 10⁶)

= 1048 x (2 x 10⁶)

2048 x 10⁶

Thus, Option-A is the correct answer.

4 0
2 years ago
While visiting Costa Rica, where would we go to see if sea turtles were nesting?
mash [69]
Tortuguero National Park
6 0
3 years ago
Which portion of the brain is involved in sensory perception? cerebrum cerebellum medulla hypothalamus
Pani-rosa [81]

Answer: Cerebrum

Explanation:

The primary sensory areas of the cerebral cortex receives and processes the somatosensory, visual, olfactory and gustatory information.

Then along with the cortical areas, the brain regions synthesize the sensory information into the perfections of the world.

It is the largest section of the brain which lies in the front or the top of the brain stem.

It is one of the five major divisions of the brain which is most developed.

3 0
3 years ago
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