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Flura [38]
2 years ago
14

ILL MARK BRAINLIEST Has Earth always been able to have liquid water?

Biology
2 answers:
andreev551 [17]2 years ago
3 0

Answer:

No

Explanation:

When earth first formed, it was covered in volcanoes. It was only until the water vapor got too much when is started raining and stuff/

kotegsom [21]2 years ago
3 0

Explanation: Earth is very biodiverse with different forms of life and natural features i.e. landscapes like mountains, plains and plateaus. Earth is surrounded by atmosphere. Earth is surrounded with 70% of water may it be solid or liquid or fresh or salt water. Yes, it is true that earth always been able to have liquid water in the form of salt or fresh water in rivers, lakes or seas.

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Chiasma form during meiosis I but not during mitosis. <br> a. True <br> b. False
Goryan [66]

Answer:

True

Explanation:

Chiasma is the site of crossing over. It is an X-shaped site that appears in a tetrad (bivalent) chromosome during the diplotene stage of prophase I of meiosis I. Crossing over refers to the exchange of segments of chromatids and occurs between homologous chromosomes only. Crossing over is the event of prophase I of meiosis I and produce new gene combinations.

The homologous chromosomes are separated from each other but remain attached at chiasmata. The dissolution of chiasmata occurs by the end of prophase I and separates the homologous chromosomes completely from each other. Crossing over does not occur in mitosis. Since mitosis does not include crossing over, chiasmata are also not formed in mitosis.

4 0
3 years ago
Chloroplasts and bacteria are --- in size
ELEN [110]
<span>.Chloroplasts and bacteria are Similar in size.</span>
5 0
3 years ago
In a plant cell, what organelles play a role in structure for the whole plant?
TiliK225 [7]

Nucleus, The “brains” of the cell, the nucleus directs cell activities and contains genetic material called chromosomes made of DNA.

6 0
3 years ago
Read 2 more answers
A researcher is using a modified version of FRAP. She has devised a technique that allows her to label all the peripheral membra
asambeis [7]

Answer:

The correct answer is option B.

Explanation:

FRAP or Fluorescence Recovery After Photobleaching refers to a method of finding the kinetics of diffusion in living cells, generally with the assistance of fluorescence microscopy. The method comprises the labeling of a particular cell constituent with a fluorescent molecule, imaging that cell, photobleach a small section of the cell, then image the recovery of fluorescence with time.  

In the given question, as the fluorescence has recovered back to the bleached region. The scientist can come to the conclusion that the membrane of the cell and the peripheral membrane proteins do not always belong together.  

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The posterior, inner part of the eye is called the __________ of the eye.
marshall27 [118]
The retina; I may be wrong.
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