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Elanso [62]
2 years ago
6

Which evidence is consistent with the endosymbiotic hypothesis for the origin of the mitochondrion?

Biology
1 answer:
Sauron [17]2 years ago
4 0
Bacteria, a prokaryote, has circular DNA, as do mitochondria and chloroplasts. This provides support for the Endosymbiotic Theory, which states that the mitochondria and chloroplast in eukaryotic cells were once aerobic bacteria (prokaryote) that were ingested by a large anaerobic bacteria (prokaryote).
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What do angiosperms reproduce with?<br> A.spores<br> B.seeds<br> C.cones<br> D.amniotic eggs
Tcecarenko [31]

Answer:

b

Explanation:

4 0
3 years ago
Assume you are working for a chemical company and are responsible for growing a yeast culture that produces ethanol. the yeasts
Licemer1 [7]
<span>I believe is answer is the temperature is too low. If the main fermentation products will be always ethanol in the yeasts chosen for alcoholic fermentation, since the yeasts are growing well on the maltose, the temperature may be too low which causes poor extraction of color and tannins in red wines and can also cause sluggish fermentations and production of high levels of ethyl acetate.</span>
3 0
3 years ago
In response to a state of shock, what mechanisms does the sympathetic nervous system utilize in the four distinct stages to help
svetlana [45]

Answer:

Increase in heart rate.

Increase in respiratory rate.

<h2>What is a sympathetic nervous system?</h2>

The peripheral nervous system and the central nervous system are the two primary divisions of the human nervous system, as shown in the image below.

Two additional parts make up the peripheral nervous system. Skeletal muscle movement that is voluntary is controlled by the somatic nervous system. The somatic nervous system is at action when you choose to bring your coffee cup to your lips; it is doing so by engaging the necessary muscles. The autonomic nervous system, which regulates functions outside of our conscious awareness, is the second part of the PNS.

The parasympathetic nervous system and the sympathetic nervous system are additional divisions of the autonomic nervous system (which you are interested in). They have negative consequences on one another, to put it very broadly. While the parasympathetic neural system largely works to calm the body, the sympathetic nervous system often stimulates the body. Although this is a streamlined perspective, it might be helpful to think about it this way.

The sympathetic branch of the autonomic nervous system speeds up heartbeat, slows down digestion, opens up airways in the lungs to allow for greater airflow, triggers the liver to release glucose, and relaxes the bladder. All of this wakes up the body and gets it ready to "fight."

The parasympathetic division, in contrast, slows the heart rate, tightens the bronchi in the lungs, and boosts blood flow to the digestive system. The phrase "relax and digest" has been used to describe it.

The parasympathetic nervous system's nerves originate from the brainstem and spinal cord, as shown in the diagram. The "ganglia" (collections of cell bodies) of the sympathetic nervous system, however, exist beyond the spinal cord.

It's interesting to note that whereas the sympathetic nervous system activates the body using both acetylcholine (ACh) and norepinephrine (NE), the parasympathetic nervous system solely needs ACh to affect organs.

The sympathetic and parasympathetic nerve systems are autonomic, which means we typically have minimal control over them.

7 0
1 year ago
Explain why the outer planets did not lose the lighter gases in their atmosphere.
saw5 [17]
In order for gas to leave a planet it needs to be hot enough and to overcome the planets gravity. The outer planets are colder and are very big compared to earth. 
3 0
3 years ago
Select the description of sensory receptors.
charle [14.2K]
3....................
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