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3 years ago

15

What does the plasma membrane do? A. makes food for the cell B. reproduces cells C. keeps the cell small D. encloses specific st

ructures

2 answers:

Hoochie [10]3 years ago

5 0

Answer:

the answer is D. encloses specific structures

Explanation:

Mila [183]3 years ago

3 0

<span>D. encloses specific structures</span>

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Natasha_Volkova [10]

I’m pretty sure it’s D.increases the activation energy for a reaction.

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2 years ago

Mount St. Helens is a volcano that erupted with great force in 1980. Which phrase best describes this eruption?

AleksAgata [21]

Answer:The best phrase which supports the eruption would be high-viscosity magma lava broken into fragments.

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2 years ago

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Construct a three-step synthesis of 1,2-epoxycyclopentane from cyclopentanol by dragging the appropriate formulas into the bins.

vladimir2022 [97]

Answer:

(1) Bromination, (2) E2 elimination and (3) epoxidation

Explanation:

In the first step, -OH group in cyclopentanol is replaced by more facile leaving group Br by treating cyclopentanol with $PBr_{3}$

In the second step, E2 elimination in presence of strong base e.g. NaOEt/EtOH produce cyclopentene

In the third step, treatment of cyclopentene with mCPBA produces 1,2-epoxycyclopentane

Full reaction scheme has been shown below

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2 years ago

Describe one major change that occured in the modern atomic model

aleksley [76]

the modern atomic model shows that electrons are located in a predicted area but cannot be identified in a specific point

Hope this helps :)

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3 years ago

How might it benefit forensic scientists to smaller subcategories for fingerprints?

Inga [223]

Answer: Once the fingerprints are captured and described, judicial physicists use a categorization structure to label the ruling class. The three elementary mark on finger patterns is Whorl, Arch, and Loop. There are more intricate categorization methods that further decay the pattern to plain arches or make camp arches. Loops grant permission be branching or ulnar.

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2 years ago