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Veronika [31]
2 years ago
9

Why is it important for the skull to have holes through the bone

Biology
1 answer:
garri49 [273]2 years ago
5 0

Answer:

it is important for the skills to have hole thought the bone because it is used to relieve pressure on the brain when fluid, such as blood builds up and starts to compress bone tissues

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What changes the stability of the element
aalyn [17]
Stable elements are those which have atleast one isotope with no tendency to "decay", i.e., change into anotherelement.
6 0
3 years ago
Receptors for acetylcholine are located on the
elena-s [515]

Answer:

plasma membrane of the target cell

Explanation:

There are two main types of acetylcholine (ACh)receptors:

  1. muscarinic ACh receptors (because muscarin as agonist) which are G-protein coupled receptors that initiate slow response. Mostly, they are located in the central nervous system-CNS (involved in the release of neurotransmitters), heart (control of the heart rate), smooth muscles (contraction).
  2. nicotinic ACh receptors (nicotin is agonist) which are  ligand-gated ion channels involved in the fast response. They are located at neuromuscular junctions but also in CNS (involved in synaptic transmission between two neurons).
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3 years ago
When a group of proteins such as interferons and interleukins are released by the t cells, intercellular signals begin the immun
diamong [38]

The cytokine describes the group of proteins such as interferons and interleukins that regulate cell communication, mainly produced by the immune system in normal and pathological conditions.

<h3>What is a cytokine?</h3>

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They are produced by different activated cells, responsible for innate and/or acquired immunity, and regulate the immune and inflammatory response.

Therefore, we can conclude that the cytokine describes the group of proteins that regulate cell communication, mainly produced by the immune system in normal and pathological conditions.

Learn more about cytokine here: brainly.com/question/17215490

8 0
2 years ago
Which of the following statements is TRUE about fiber? A) Fiber is best obtained through pills and other fiber supplements. B) C
Nostrana [21]

Answer:

C) Increases in daily fiber intake should be gradual.

Explanation:

Fiber is the indigestible part of plants and carbohydrates. Beans, peas and lentils are some sources of fiber.

Fiber is best obtained through dried peas and beans and not from pills and the optimal amount of fiber varies with gender, age and pregnancy so there is no fixed diet for fiber and 25 g  fiber a day is recommended for adult women and 38 g for adult men.

Increases in daily fiber intake should be gradual because a high fiber diet helps to prevent diseases like heart diseases, diabetes, constipation, and colon cancer. It also smoothens the digestive system and lowers the cholrestrol.

Hence, the correct answer is "C) Increases in daily fiber intake should be gradual."

4 0
2 years ago
One of the finest available sequences of fossils shows how horses have changed slowly and by subtle steps from small, shrub-brow
Mumz [18]
<span>This would be the gradualism model. This model shows that there are a number of transitional species for a given organism and that the changes to the family of species were very minor and took a long period of time. The changes are typically uniform across the species and lead to one species becoming another over this long time-frame.</span>
8 0
3 years ago
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