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Serjik [45]
3 years ago
7

Amniotes are divided into three groups based in their skull morphologies. what are these three groups, and how do their skulls d

iffer? which living amniotes, if any, originated from each of these three groups?
Biology
1 answer:
amm18123 years ago
8 0
Based on skull morphology, amniotes can be divided:
1. Anapsids-It is a group of organisms with skulls that lack openings called temporal fenestrae.Turtles are an example of Anapsids.
2. Diapsids-It is a group of organisms with skulls that have two temporal fenestrae behind the orbit, one superior and one inferior. Examples are crocodilians, birds, tuataras, lizards and snakes.
<span>3. <span>Synapsids-It is a group of organisms that have one temporal fenestra behind the eye. The example is mammals.</span></span>
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Answer:

B. decreases salivation and increases blood pressure

Explanation:

The sympathetic nervous system is part of the autonomous nervous system which controls involuntary responses of the body such as salivation and blood pressure.

The sympathetic nervous system  is majorly responsible for body actions that are produced when threat is perceived. It generates responses referred to as the “fight or flight” response. Examples of such responses include, increased breathing, increased high blood pressure, dilation, decreased salivation, etc.

Activation of the sympathetic nervous system would result in rise in the blood pressure as can be witnessed by someone whose body has perceived a threat or reacting to a stressful situation.

The control of salivary production by the sympathetic nervous system  leads to the release of noradrenaline which acts on certain receptors that results in decrease in the production of saliva. This is evident in a person that is facing a threat also.

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dunno

Explanation:

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3 years ago
Cells are small simple mechanisms.<br> True Or False?
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Answer:

True

Explanation:

6 0
2 years ago
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How can the carbon in animal wastes reach the atmosphere? A) Photosynthesis, organic carbon, underground storage. B) Decompositi
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The ways the carbon in animal waste reach the atmosphere is : B. Decomposition, Fossil fuel formation, and fossil fuel emissions

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el acetil-CoA necesario para la síntesis de colesterol puede provenir de la vía glucolítica

Explanation:

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Ahora bien, el acetil-CoA para este proceso puede ser producido por la degradación hasta piruvato del excedente de glúcidos mediante de la vía glucolítica. Este reacción se produce dentro de la mitocondria, donde el piruvato produce acetil-CoA.

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