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horrorfan [7]
2 years ago
15

A cell membrane acts as a boundary between the cell and its external environment. What is another role of the cell membrane?

Chemistry
2 answers:
Deffense [45]2 years ago
7 0
D is the answer because it acts like a gate that lets materials im and out
Naddika [18.5K]2 years ago
4 0
The answer is D, it controls what comes in & out the cell, well i hope so!
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7. Which of the following would lower the pitch of a string instrument's sound?
vfiekz [6]

The correct option is C.

The pitch of a string refers to the quality of sound that is produced by the string when it vibrates. There are three basic factors that affect the quality of pitch of a string, these are: the tension, the thickness of the string and the length of the string. The higher the thickness of the string, the lower the pitch of the string, thus, increasing the thickness of the string will lower the pitch.

3 0
3 years ago
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You have 2.394 x 102 mL of oxygen gas (O2) at 7.20 x 102 mm of Hg and 78 oC.
igomit [66]
We are given with
V = <span>2.394 x 102 mL 
P = </span><span>7.20 x 102 mm of Hg
T = </span><span>78 oC

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n = </span>7.20 x 102 mm of Hg (2.394 x 102 mL) / R (78 + 273)
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3 0
3 years ago
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Elanso [62]

Answer:

C. The volume will stay the same

6 0
3 years ago
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hodyreva [135]

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Explanation:

I took the Quiz/Test

7 0
3 years ago
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Are the statements about hydrogen bonding of the compound below with water true or false? this compound can act as a hydrogen-bo
Lyrx [107]
I searched for complete question (as your question is missing with structure) and found the structure of compound attached below.

Answer:
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4 0
3 years ago
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