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Neporo4naja [7]
3 years ago
12

What supply of oxygen exists in the body at any one time?

Biology
1 answer:
german3 years ago
4 0

Answer:

4 min to 6 min

Explanation:

Most people have a four-to-six minute supply of oxygen in the body at any one time.

However, a group of people called the Bajau have divers who can stay underwater for as long as 13 min at depths of around 60 m.

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A elephant cell has 20 chromosomes. how many chromosomes will the cell have just before mitosis begins in the elephant cell?
lora16 [44]

The elephant cell will have 20 chromosomes.

Cells undergo interphase before getting to the mitotic phase. At the S phase of the interphase, the amount of DNA in the cell is double by replication. However, the number of chromosomes remains intact.

Thus, the cell gets to the mitotic phase with the same number of chromosomes that is usually present in normal vegetative cells of the animal.

More about mitosis can be found here: brainly.com/question/13536882?referrer=searchResults

8 0
3 years ago
List three resources used in agriculture
Simora [160]

Agriculture depends on the conservation of our most precious natural resources: <em>water, land, and biodiversity.</em>

7 0
3 years ago
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Which of the following statements about chemiosmosis is NOT true?
melomori [17]

Answer:

I don't know the answer to the first one, but I can answer the second question. <em>Cellular respiration </em><u><em>has carbon dioxide and water as waste products</em></u><em>.</em>

Explanation:

<em>Cellular respiration</em> does <u>not</u> form glucose & oxygen and doesn't occur in the chloroplast, but does form <em>ATP energy</em>, <em>carbon dioxide</em>, & <em>water</em> and the process occurs in <em>mitochondria</em>. Photosynthesis on the other hand forms glucose & oxygen and does occur in the chloroplast.

7 0
3 years ago
How can osteocytes remain alive within bone? Select one: Osteocytes have membrane extensions that protrude from bone and allow t
Alisiya [41]

Answer:

Haversian canals are bone structures that contain blood vessels that provide materials for the osteocytes

Explanation:

Through this Harvesian canals, blood vessels that contain the necessary nutrients for their growth and development are brought which keeps them alive

7 0
3 years ago
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What is the possible consequences of adding an organism to a food chain?
Nataly_w [17]

If an invasive species is added into a food chain/web, it becomes overpopulated/a pest because it has no natural predators.

It can also disrupt the food chain/web by eating the food supplies of the native organism leading to competitions.

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