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kakasveta [241]
3 years ago
7

Which factors involving the activities of people are a threat to biodiversity?

Biology
2 answers:
nikitadnepr [17]3 years ago
7 0

Answer:

C

Explanation:

I JUST TOOK THE TEST

nevsk [136]3 years ago
3 0

Answer:

C)Poaching and habitat loss

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Hi there!

Your answer is:

It is very important for the cell membrane to be <em>semi-permeable</em> because the ability to pick and choose what comes in and out of the cell keeps the cell safe! The membrane can choose to block out nasty germs and can also choose to get rid of internal waste.

An example of when this is important is in this scenario:

Let's say the cells are in a really salty solution. Naturally, salt will want to pull the water out of the cell. If the membrane <u>wasn't</u><u> </u> semi permeable, the water would listen to the salt and leave the cell. This would cause cell death. <u>BECAU</u><u>SE</u> the membrane is semi permeable, they can choose <em>not</em> to give the salt any water, keeping them alive

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Viruses is the answer to this
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The bases found in the nucleotides of a DNA molecule are<br>&amp;<br>there are chromosomes are​
Tomtit [17]

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The DNA molecule is a polymer of nucleotides. Each nucleotide is composed of a nitrogenous base, a five-carbon sugar (deoxyribose), and a phosphate group. There are four nitrogenous bases in DNA, two purines (adenine and guanine) and two pyrimidines (cytosine and thymine). A DNA molecule is composed of two strands.

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List ten sources of water polution (LIST FORM, NOT LIKE AN ESSAY PLEASE!)
nadezda [96]

Answer:

  1. Industrial waste (toxic chemicals)
  2. Sewage (contains harmful bacteria)
  3. Oil spills from boats
  4. Agriculture (pesticides and animal waste)
  5. Radioactive waste from nuclear powerplants
  6. Dumping trash (trash such as plastics, glass, styrofoam, etc.)
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  8. Mining activities (particles from mining)
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Which of the following best describes erosion? 1. an increase in wave frequency due to wind 2. the movement of sediment due to w
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2.

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