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Bezzdna [24]
3 years ago
15

During a stressful interval, ________. During a stressful interval, ________. the posterior pituitary gland secretes more growth

hormones adrenocorticotropic hormone (ACTH) stimulates the adrenal cortex, and neurons of the sympathetic nervous system stimulate the adrenal medulla thyroid-stimulating hormone (TSH) stimulates the adrenal cortex and medulla to secrete acetylcholine the alpha cells of islets secrete insulin and simultaneously the beta cells of the islets secrete glucagon the calcium levels in the blood are increased due to actions of two antagonistic hormones, epinephrine and norepinephrine
Biology
1 answer:
velikii [3]3 years ago
5 0

Answer:

Adrenocorticotropic hormone (ACTH) stimulates the adrenal cortex, and neurons of the sympathetic nervous system stimulate the adrenal medulla.

Explanation:

Hormones are the chemical messengers of the body and maintain the body's homeostasis in different adverse conditions. The hormones work by the feedback regulation system.

To overcome from the stress condition the body releases the hormone known as epinephrine. The receptors sense the stressful condition and adrenal cortex is stimulated by adrenocorticotropic hormone that results in the release of adrenaline hormone. The hormone activates the sympathetic nervous system of the body to cope with the fight and flight conditions.

Thus, the correct answer is option (2).

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Each enzyme works best at their own pH, so at high pH the enzyme is said to be denatured, changing shape. The substrate is no longer able to bind to the active site.

8 0
3 years ago
Which structure is found in all Eukaryotic cells.
Irina-Kira [14]

B. Golgi Apparatus.

All eukaryotes have a Golgi apparatus though not all have the other organelles named above. They all have it because of it's indispensable function, transportation of lipids and the preparation for secretion an secretion of proteins.

The other part mentioned have important functions but that varies from cell to cell according to their functions.


Hope it helped,


BioTeacher101

6 0
3 years ago
Read 2 more answers
Would life cease to exist without energy from the sun or some other source
goldfiish [28.3K]
Yes because we use the sun light as a way to grow crops for one so no one would be getting any food and plant life would never grow and would die so we wouldn't be getting Air as well because trees and plants make oxygen for us
8 0
3 years ago
You are an organism living along either a rocky or sandy beach. Tell me which organism you are, whether you're in the rocky shor
TiliK225 [7]
Crab in Rocky shore By rock pools - deep in ocean as they get older
Typical day - just shuffle along the rocks
To get food - from rock pools use claws to get fish
As they get bigger, they eat protozoa, diatoms and smaller crabs that live on the ocean floor. When the crabs reach 2 to 4 years of age, they move to deeper water where they join the adult crabs that eat worms, clams, mussels, snails and sea urchins. They also eat sand dollars, barnacles, fish parts and algae.
Hard shell is their protection and claws as a defends mechanism
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7 0
4 years ago
1. how are positive ions formed (what is gained or lost)? use potassium (k) as an example. how many protons and electrons does a
Levart [38]

Positive ions are formed when electrons are lost, for example, Potassium ion, K⁺ is formed when a Potassium atom, K losses one electron. A neutral atom of Potassium (K) has 19 protons and 19 electrons, and a positive ion of Potassium (K⁺) has 19 protons and 18 electrons.

Ions are charged particles formed when neutral atoms loss or gain electrons. When electrons are lost, positively charged particles called cations are formed, and when electrons are gained, negatively charged particles called anions are formed. Electropositive elements are more likely to form cations. Potassium (K) losses one electron in order to obtain a stable configuration, forming Potassium ion (K⁺).

For all neutral atoms, the number of protons is always equal to the number of electrons. The number of protons is the same as the atomic number. Potassium (K) has an atomic number of 19, thus it has 19 protons. Since Potassium (K) atom is a neutral atom, it will also have 19 electrons.

However, Potassium ion (K⁺) has lost one of its electrons, so it will have 18 electrons instead of 19. Therefore, Potassium (K) has 19 protons and 19 electrons, while Potassium ion (K⁺) has 19 protons and 18 electrons.

Learn more about ions here:

brainly.com/question/14644819

#SPJ4

5 0
1 year ago
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