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Bess [88]
3 years ago
5

Which of these is a pure substance that cannot be broken down by a chemical reaction?

Biology
1 answer:
Amiraneli [1.4K]3 years ago
5 0

Answer: Element

Explanation: An element is a pure substance that cannot be separated into simpler substances by chemical or physical means.

Each element has unique physical and chemical properties.

Plz mark brainliest:)

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Which of the following statements correctly describes the relationship between biodiversity and sustainability? (1 point)
laila [671]

The statement that correctly describes the relationship between biodiversity and sustainability is, biodiversity increases while sustainability decreases with an increase in the number of species in an ecosystem.

<h3>What do you mean by Biodiversity?</h3>

Biodiversity may be defined as the sum total of all the living organisms living in a particular ecosystem.

As the number of species increases, biodiversity also increases because both are directly proportional to one another.

While the species enhancement negatively impacts the sustainability of the environment.

Therefore, the statement that correctly describes the relationship between biodiversity and sustainability is, biodiversity increases while sustainability decreases with an increase in the number of species in an ecosystem.

To learn more about Biodiversity, refer to the link:

brainly.com/question/11542363

6 0
2 years ago
——————-—— is necessary for all life on earth
prisoha [69]

Answer:

Maybe sunlight? There's not that much context to go with this question

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How does the haemoglobin provide the body with energy ?
anzhelika [568]

Answer:

Hemoglobin transfers oxygen from the lung to the muscles, brain, and other organs, and also helps the body to convert carbohydrates and fat into energy.

5 0
3 years ago
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Which statement is true of both active transport and facilitated diffusion?
enyata [817]

The correct answer is option (D) The active transport and the facilitated diffusion both involve the proteins present in the cell membrane.

Facilitated diffusion transport the large and the charged molecules through the protein transport channels present in the cell membrane. In this case, the solute move from a region of higher concentration to lower concentration and it does not require energy.

Active transports takes place when the molecules move from a region of lower concentration to higher concentration via the membrane protein channels.

Both facilitated diffusion and active transport requires the proteins present in the cell membrane.

7 0
3 years ago
Please help me, anything will help. I think 5 is B.
Alekssandra [29.7K]
5 is b because it makes more sense
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3 years ago
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