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bonufazy [111]
3 years ago
15

Some prokaryotes are able to survive unfavorable conditions by forming?

Biology
2 answers:
Nastasia [14]3 years ago
8 0

It’s D.) endospores

3241004551 [841]3 years ago
6 0
I think the correct answer from the choices listed is option D. Some prokaryotes are able to survive unfavorable conditions by forming endospores. The formation of such is promoted by a lack of nutrients and it oftentimes happen to Gram-positive bacteria.
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A muscle that swings two long bones in an arc toward each other is a ______
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Answer:  flexor, hamstring muscle

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How does magma form rocks that look smooth and glassy
algol13

Answer:

Magma that flows then cools on the earth's surface fast enough that there is no time for any crystals to form on the rocks and are as smooth as glass.

Explanation:

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What two properties are used to calculate kinetic energy?
maks197457 [2]
The correct answer is B.
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Which part of a cell is used by a virus to produce its protective protein coat?
Nadusha1986 [10]

A ribosome is the part of a cell is used by a virus to produce its protective

protein coat.

Virus produces a protective protein coat known as capsids  which serves as

a means of protection for the organism. The capsids are produced through

the organelle known as ribosome.,

The ribosome acts as a site for protein synthesis in organisms and the

capsids being made up of protein means the ribosome was used to

produce its  protective protein coat.

Read more about Virus on brainly.com/question/8773679

7 0
2 years ago
A normal breath takes in about 1.0 L of air. If air has an average molar mass of 28.8 g per 1 mol and has a density of 0.97 g/mL
Ann [662]

Taking into account the definition of density and Avogadro's Number, you take 2.0286×10²⁵ molecules of air.

<h3>What is density</h3>

Density is defined as the property that matter, whether solid, liquid or gas, has to compress into a given space.

In other words, density is a quantity that allows us to measure the amount of mass in a certain volume of a substance.

Then, the expression for the calculation of density is the quotient between the mass of a body and the volume it occupies:

density=\frac{mass}{volume}

<h3>What is Avogadro's Number</h3>

Avogadro's Number or Avogadro's Constant is called the number of particles that make up a substance (usually atoms or molecules) and that can be found in the amount of one mole of said substance. Its value is 6.023×10²³ particles per mole. Avogadro's number applies to any substance.

<h3>Amount of molecules of air</h3>

In this case, you know that:

  • Density= 0.97 \frac{g}{mL}
  • Volume= 1 L= 1000 mL

Replacing in the definition of density:

0.97 \frac{g}{mL}=\frac{mass}{1000 mL}

Solving:

mass= 0.97 \frac{g}{mL}  ×1000 mL

<u><em>mass= 970 g</em></u>

Air has an average molar mass of 28.8 g per 1 mol. Then 970 grams are contained in 33.68 moles.

Now, considering the definition of Avogadro's number you can apply the following rule of three: If 1 mole of air contains 6.023×10²³ molecules, 33.68 moles contains how many molecules?

amount of molecules = (33.68 moles× 6.023×10²³ molecules)÷ 1 mole

<u><em>amount of molecules= 2.0286×10²⁵ molecules</em></u>

Finally, you take 2.0286×10²⁵ molecules of air.

Learn more about

density:

brainly.com/question/952755

brainly.com/question/1462554

Avogadro's Number:

brainly.com/question/11907018

brainly.com/question/1445383

brainly.com/question/1528951

#SPJ11

4 0
1 year ago
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