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Maru [420]
3 years ago
7

GIVING BRAINLIEST TIMED ASSIGNMENT!!! What is a PRION?

Biology
1 answer:
Delicious77 [7]3 years ago
5 0

a prion is a protein which can cause fatal neurodegenerative diseases

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What type of plant would be least affected by the loss of the guard cell function that closes stomata?.
maks197457 [2]

A rainforest plant would be least affected by the loss of guard cell function that closes the stomata.

<h3>What is Guard Cells?</h3>

Guard cells are types of specialized plant cells present in the epidermis of leaves, stems, and other organs that are used to control gas exchange.

They are produced in pairs with a gap between them that forms the stomatal pore. They are kidney-shaped cells that surround stomata and control the opening and closing of stomata.

When there is an excess of water in the plant, the guard cells swell and form a hole for the exchange of gases.

Thus, a rainforest plant would be least affected by the loss of guard cell function that closes the stomata.

Learn more about Guard cells, here:

brainly.com/question/23382759

#SPJ2

5 0
1 year ago
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What are the two types of density change?
Anton [14]
One type of density change is mass over volume.
4 0
3 years ago
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What happens in the G2 phase of the cell cycle?
balu736 [363]
The Best Answer :
 <span>"G2 phase is the third, final, and usually the shortest subphase during interphase within the cell cycle in which the cell undergoes a period of rapid growth to prepare for mitosis. It follows successful completion of DNA synthesis and chromosomal replication during the S phase, and occurs during a period of often four to five hours. This far into interphase the nucleus is well defined, bound by a nuclear envelope and contains at least one nucleolus. Although chromosomes have been replicated they cannot yet be distinguished individually because they are still in the form of loosely packed chromatin fibers. The G2 phase prepares the cell for mitosis (M phase) which is initiated by prophase. 
At the end of this gap phase is a control checkpoint (G2 checkpoint) to determine if the cell can proceed to enter M phase and divide. The G2 checkpoint prevents cells from entering mitosis with DNA damaged since the last division, providing an opportunity for DNA repair and stopping the proliferation of damaged cells. Because the G2 checkpoint helps to maintain genomic stability, it is an important focus in understanding the molecular causes of cancer."</span>
5 0
3 years ago
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PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU B
MissTica

Answer:

the answer to the question is B

5 0
2 years ago
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Which is part of the endosymbiont theory? Autotrophic prokaryotes evolved into mitochondria. Eukaryotes engulfed photosynthesizi
MrRa [10]

Answer:

The correct answer is eukaryotes engulfed photosynthesizing prokaryotes

Explanation:

The endosymbiotic theory or symbiogenesis is an evolutionary theory that traces the origin of eukaryotic cells from prokaryotic organisms. It explains that some of the organelles (Mitochondria and Chloroplasts) in eukaryotic cells evolved from free-living prokaryotic microbes which were ingested or engulfed. The ingested prokaryotic cells survived within the organism and developed a symbiotic relationship.

According to the theory, chloroplasts was formed when eukaryotes engulfed photosynthesizing prokaryotes and mitochondria was formed when bacteria capable of aerobic respiration were engulfed.

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3 years ago
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