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Dominik [7]
3 years ago
12

According to endosymbiotice theory which of yhe following evolved into chloroplasts in autotrophs

Biology
1 answer:
mafiozo [28]3 years ago
3 0
<span><span>cyanobacteria

Example:
</span>Mitochrondria of the eukaryotic cells.


As many researchers hypothesize that the old single-celled organism or the origin of the complex-celled organisms came from the endosymbiosis of the mitochrondrion organism and the prokaryotic cell. It has been said that mitochondria was an independent organism which then to have been evovled itself after planting itself inside a prokaryotic cell which aided cellular respiration and production of ATP (Adenosine Triphosphate). This then aided the prokaryotic cell to be more sophisticated and caused another change from having without a true nucleus to a eukaryotic cell with a nucleus and embedded DNA. </span>
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What is the function of the ascending and descending tracts in the medulla oblongata? (module 13. 4c)
kakasveta [241]

The medulla has the ascending and the descending tract which function to link the brain with the spinal cord.

<h3>What is the role of medulla?</h3>
  • Medulla oblongata is the lowermost part of the brain.
  • It is located at the place where the brain and the spinal cord connect thus it carries nerve signals between the brain to spinal cord thus help the entire body to communicate.
  • It controls biological processes like blood pressure, breathing and heartbeat.
  • Ascending tract functions to carry sensory information from the body (e.g.: pain) from the spinal cord to the brain (upwards).
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Learn more about medulla here:

brainly.com/question/26723889

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2 years ago
How do the main sequence stages of these two sizes of stars differ?
xxTIMURxx [149]
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Small, relatively cold, low mass red dwarfs burn hydrogen slowly and will burn for hundreds of billions of years 

Massive hot supergiants will live for just a few million years. 

A mid-sized star like the Sun will remain on the main sequence for about 10 billion years. Hope tis helps!!
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