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o-na [289]
4 years ago
15

IM IN NEED OF DESPERATE HELP

Biology
1 answer:
atroni [7]4 years ago
6 0

Answer:

I did and got 93%! What help do you need?

Explanation:

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Which of the following are characteristics of archaeal cell membranes that probably help them survive at very high temperatures?
torisob [31]

Answer:

Option-B, C and E

Explanation:

Archaebacteria are a group of prokaryotes which can survive the extreme conditions. The archaebacteria which can survive very high temperature are called hyperthermophiles. The hyperthermophilic bacteria can survive temperature range between 70 t 125 °C observed in hydrothermal vents.

The archaea bacteria can withstand the high temperature as their membrane is adaptive. The membrane of the archaea is more stable due to the ether linkage which makes carbon less chemically reactive. The phospholipids possess a monolayer which decreases the layer fluidity and thus the unwanted movement of molecules.

The archaea also contain cyclopentane rings in the ester-linked phospholipids which allows tight pacing of the molecules which decrease the movement of solute into and out of the cell.

Thus, the selected options are correct.

6 0
4 years ago
Which of the following does the enzyme primase synthesize?
kenny6666 [7]

Answer:

RNA primer

Explanation:

the DNA polymerase can't synthesize DNA without an 3' ending, the primase enzyme synthesize an RNA primer that brings to the DNA polymerase the 3' spot so she can finally starts the new DNA chain.

5 0
3 years ago
In the cranes what does songsam recall in the two flashbacks to his childhood? explain how these memories motivate songsam's act
True [87]
The "Cranes" is a short story book written by Hwang Sunwon. The story is set in Korea during the Korean War and focuses on two childhood friends, Songsam and Tokchae, who are on opposite sides during the war. Songsam has two flashbacks of his childhood memories with his friend Tokchae, where he remembers how they used to climb the trees and catch cranes. These flashbacks act as a reminder of the times he had spent with his friend and the importance of this friendship. As a result, these memories motivate him to let Tokchae free.
5 0
3 years ago
Research the differences that exist between mitosis and binary fission. Identify at least one difference, and explain why it is
barxatty [35]
Binary fission is a method of asexual reproduction which single-celled organisms, usually prokaryotes, use to create a copy of themselves.
Mitosis is cell division that results in two identical daughter cells and is primarily used for growth of an organism
7 0
3 years ago
How does creativity affect scientific work?
SCORPION-xisa [38]
It allows scientists to explore new explanations for observations.
7 0
3 years ago
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