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Sophie [7]
3 years ago
9

Which of the following sources would a scientist consider the most reliable to use when developing a hypothesis for an investiga

tion?
Biology
1 answer:
zheka24 [161]3 years ago
3 0
What are the sources
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If you were asked to write the chemical formula for one of the compounds in Model 1, which type of the drawing would be the easi
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Answer:

Drawing of the structure of compounds showing atoms.

Explanation:

Making structure of the compound is the easiest way to show the atoms present in the compounds or to express chemical formula of the compound because in the structure the atoms from which the compound is formed is clearly shown so draw the structure of the compound is the best and quick way to show the chemical formula of the compound.

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3 years ago
Normally, activity of the hypothalamic-pituitary-adrenal axis is regulated by a feedback loop that reduces the release of cortis
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<span>The correct answer is c. ​hypothalamus to pituitary gland to adrenal glands.
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When it comes to stress, hypothalamus-pituitary-adrenal axis (HPA) is responsible for stress response. Hypothalamus releases corticotropin-releasing hormone (CRH) which binds to its receptors on the anterior pituitary gland. As a result, adrenocorticotropic hormone (ACTH) is released and it stimulates the release of cortisol from the adrenal gland. At a certain levels of cortisol, this steroid hormone exerts negative feedback to the hypothalamic release of CRH.
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3 years ago
How could coffee being spilled affect the thermal energy transfer of her coffee
cricket20 [7]

Answer:

como el cafe inicialmente se encuentra a una temperatura alta las moléculas se mueven a gran velocidad al tener contacto térmico con las moléculas del agua las moléculas del va transferir energía térmica perdiendo calor lo q hara q la temperatura de café baje

8 0
2 years ago
How many cells are in the body
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A lot hope this helps
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2 years ago
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The interaction between which protein and ion initiates muscle coupling?
labwork [276]

Answer:

Troponin and calcium ions.

Explanation:

Troponin is a component of thin filament along with tropomyosin and actin. It is a protein complex to which calcium binds and start the production of muscular force.

Calcium also playing a very important role in muscle contractions, it binds with troponin and helping to move tropomyosin.

When calcium ion attached to troponin, then conformational changes occurs in troponin shape and moves which allow tropomyosin going away from its inhibitory position from the myosin-binding sites on actin. After this, the energized myosin head starts binding to the actin molecules and starts the cross bridge cycle, which helping in shortening the muscle's fiber.

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