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Lostsunrise [7]
3 years ago
10

Jeremy walks down a dark alley and finds himself confronted by a vicious dog. His heart starts beating faster and his eyes dilat

e, so he can see better in the dark. _____ has been released from his pituitary gland to help him prepare for the danger.
Biology
1 answer:
salantis [7]3 years ago
8 0

Answer:

Adrenocorticotropic hormone (ACTH)

Explanation:

During stress condition, the pituitary gland located in the brain receives a stimulatory signal from the hypothalamus and releases the Adrenocorticotropic hormone .

The Adrenocorticotropic circulate in the brain and when reaches the adrenal gland causes the release of the cortisol and the epinephrine or adrenaline from the adrenal gland cortex.

These two hormones along with norepinephrine acts in the adrenergic receptors and produces the stress response or fight or flight response.

Thus, Adrenocorticotropic hormone is the correct answer.

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Which type of muscle cell propels substances or objects through internal passageways? skeletal. cardiac. smooth. striated.
Naddik [55]

Answer:

Smooth muscle

Explanation:

  • The smooth muscle is one of the three types of muscle present in the human body and other animals.
  • The smooth muscle is called smooth because of its smooth appearance without any striations in its structure.
  • The smooth muscle is made of the spindle-shaped cells characterized by a single nucleus.
  • The smooth muscle cells are controlled by the autonomic nervous system and therefore is involuntary in its action.

The smooth muscle is present in the hollow organs and propels the substances through these hollow internal passages like in the alimentary canal of the digestive tract and urinary bladder.

Thus, the Smooth muscle is correct.

8 0
3 years ago
Which of the following groups could be identified using the biological species concept? Select all that apply. Select all that a
melomori [17]

Answer:

Bacteria, Sunflowers, Lizards.

Explanation:

They are all biological species due to being apart of flora and fauna. It wouldn't be dinosaurs since biologists study living things, dinosaurs are extinct.

6 0
3 years ago
Explain why mutations may or may not affect phenotype
Svetlanka [38]

Answer:

Explanation:

Mutations may or may not affect the phenotype because they can occur in coding or non coding areas of the DNA. If they occur in coding areas of the DNA, the protein that is coded in that part could be processed incompletely or have a different amino-acid in some part of its structure, this would affect the phenotype. If they occur in non coding areas, this would have no effect on the phenotype.

3 0
2 years ago
4. Using the image below, determine what type of solution the LYSED cell is in.solutionsolutionsolutionHOHO-Н,0LysedNormalShrive
natita [175]

The image shows a red blood cell in different solution. The first image shows an RBC in a hypotonic solutions. The RBC swell and lyse because of the osmotic movement or referred to as hemolysis. The second image shows a normal RBC in an isotonic solution. There is no net change of water to the RBC. The third image shows a shriveled RBC in a hypertonic solution. The water leak out of the RBC briskly than it enters the cell. It is also called as crenated cell.

Answer - Option C - hypotonic solution

6 0
11 months ago
What is the difference in the amount of a molecule through a space
weeeeeb [17]

Molecules in the solid phase have the least amount of energy, while gas particles have the greatest amount of energy.There are space between particles of matter. The average amount of empty space between molecule gets progressively larger as a sample of matter moves from the solid to the liquid and gas phases.

7 0
3 years ago
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