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kotegsom [21]
2 years ago
14

Which one of the following statements about endosymbiosis and the origin of the eukaryotic cell is FALSE?

Biology
1 answer:
Usimov [2.4K]2 years ago
6 0

Answer:

Answer is 4. Algae incorporated prokaryotic cells that became chloroplasts, but never acquired mitochondria.

Explanation:

It should be noted , that symbiosis or symbiotic relationship is a type of relationship involving two organisms where, one may benefits while the other suffers or both organisms benefit. Symbiosis, may involve one organism living inside or outside the other.

In a situation, whereby one of the organisms involved lived inside the order , is being referred to as endosymbiosis.

This endosymbiosis has been described as probably a means through which the eukaryotic cells got or developed some organelles like chloroplasts and mitochondria.

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During cell division, the chromosomes are held together at the?
bezimeni [28]

Answer: C

Explanation: The two chromatids of a duplicated chromosome are held together at a region of DNA called the centromere. Centromeres are the attachment points for microtubules, which are responsible for the guiding the movement of chromosomes during mitosis and meiosis.

6 0
2 years ago
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Is facilitated diffusion passive or active
kirill115 [55]

Answer:

Damian here!(ノ◕ヮ◕)ノ*:・゚✧

Explanation:

Facilitated diffusion (also known as facilitated transport or passive-mediated transport) is the process of spontaneous passive transport (as opposed to active transport) of molecules or ions across a biological membrane via specific transmembrane integral proteins.

so its basically passive

Hope this helps? :))

3 0
3 years ago
The cycads, a mostly tropical phylum of gymnosperms, evolved about 300 million years ago and were dominant forms during the age
ozzi

Answer:

poliinators and flagellated sperm

Explanation:

Cycads (phylum Cycadophyta) together with Ginkgophyta, Gnetophyta, Pinophyta, Pteridospermales and Cordaitales  belong to the gymnosperms (naked seed-producing plants). They are different than angiosperms which produce encased seeds within an ovary.

Cycads (but also Ginkgo) produce swimming sperm that is different than all other groups which produce sperm without swimming flagella.

Also, unlike other groups of gymnosperms, cycads have specialized  pollinators, beetls.

6 0
3 years ago
Comparing Microscopes
amm1812

Answer:

C

Explanation:

The crayfish is a relatively large specimen, even the mouthparts. Since you are dissecting the mouthparts, you need a 3D view: you should use the dissecting microscope.

4 0
3 years ago
Arnold underwent genetic testing to determine whether he has the gene for huntington's disease. the test confirmed that he does
Elenna [48]
The answer would be : <span>dominant.

Hope this helps !

Photon</span>
5 0
3 years ago
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