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Taya2010 [7]
3 years ago
9

Na20

Biology
2 answers:
Bezzdna [24]3 years ago
8 0

Answer:

A

Explanation:

dsp733 years ago
7 0

Answer:

A)2 sodium atom and 1 oxygen atom

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ioda

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  • <u>evolution, adaptation : </u>

Question: Which process in evolution makes organisms able to survive in their habitat?  

Answer: Adaptation

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Question: What is an outcome of observation generally called that enables to test hypotheses and theories?  

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5 0
3 years ago
Which answer is correct, ( i inserted a picture) please help ill give brainliest if correct
lianna [129]

Answer:

D

Explanation:

Bohr determined that there are discrete (unique, different from one another) energy levels in the atom and that electrons will orbit the nucleus within these energy levels, known as orbitals.

7 0
2 years ago
The virus that causes chicken pox contains DNA. It reproduces inside the cells of living organisms. The virus is not made of cel
Alex777 [14]

Viruses lack the properties of living things:

1. They have no energy metabolism

2. They do not grow

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4. They do not reproduce independently- they have to replicate by invading living cells.

8 0
3 years ago
The cell is taking in substances through membrane proteins, without any energy expenditure of its own. The substances naturally
Hitman42 [59]

The right answer is facilitated diffusion.

Facilitated diffusion is a diffusion mechanism facilitated by membrane transporters. it's the spontaneous passage of molecules or ions (like the passive diffusion) through a biological membrane through transport molecules (unlike passive diffusion). This process does not consume energy (like the passive diffusion) and therefore does not involve active transportation.

6 0
3 years ago
Read 2 more answers
Explain why it is an advantage for plants to store carbohydrates as starch rather than as sugars​
Darina [25.2K]

Answer:

More energy are packed into less space by starch molecules far more than glucose or sucrose yet they are able to release this energy easily, hence maximizing both storage and mobilization.

Explanation:

When plants have a period of dormancy to survive, they store their food as starch. They store enough of this energy so as to be able to restart with and to be able to maintain metabolism for the entire period of dormancy.

In addition, we know that starch is not water soluble, hence, lacks the ability to pull water into storage cells or cause irregularity in water balance. More energy are packed into less space by starch molecules far more than glucose or sucrose yet they are able to release this energy easily, hence maximizing both storage and mobilization.

Glucose is not directly transported by plants to storage. Rather, in a plant stem, the form of carbohydrate being transported is sucrose and this is because it is a non-reducing and does not react with oxygen during transport in the stem to specialized storage plastids.

4 0
2 years ago
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