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mezya [45]
3 years ago
14

List four human activities that are current threats to biodiversity

Biology
1 answer:
devlian [24]3 years ago
5 0

It may be because;

  • Climate change
  • pollutions
  • Overpopulation
  • Global WARMING
  • Deforestration
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Evidence for the theory of continental drift was first proposed in 1912 by what german scientist?
Aleonysh [2.5K]
Wegener<span> was the first to use the phrase "continental drift" (1912, 1915) (in German "die Verschiebung der Kontinente" – translated into English in 1922) and formally publish the hypothesis that the continents had somehow "drifted" apart.....</span>
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4 years ago
Protiens are needed in the diet to help make _______
Ksenya-84 [330]

To make enzymes, hormones, and other body chemicals.

8 0
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Certain types of ________ have a relationship with certain plants where they help convert nitrogen into a usable form.
Viefleur [7K]

Answer:

Answer is C. Bacteria

Certain types of bacteria have a relationship with certain plants where they help convert nitrogen into a usable form.

Explanation:

Nitrogen is abundant in the atmosphere, but plants cannot use it because of the absence of a necessary enzyme, nitrogenase, which converts nitrogen into a usable form.  So they form a symbiotic relationship (mutually-beneficial arrangement) with nitrogen fixing soil bacteria (rhizobia) which perform biological nitrogen fixation. Biological nitrogen fixation is a process in which the symbiotic nitrogen-fixing bacteria coverts atmospheric nitrogen into ammonia and organic derivatives that plants can use to synthesize proteins.  This bacteria form nodules on the roots of plants like legumes in which nitrogen fixation takes place.

Both plants and bacteria benefit from this symbiotic relationship, as the plant obtains ammonia to synthesize proteins from nitrogen in the atmosphere while bacteria obtain carbon compounds from the plant produced through photosynthesis and a secure environment to grow. As the plant roots leave behind some of the usable form of nitrogen in the soil, this process also increase soil fertility.

4 0
4 years ago
NEED HELP PLZ ASAP Which statement describes climate and not weather?
steposvetlana [31]

Answer:

I would believe it to be C

Explanation:

8 0
3 years ago
Read 2 more answers
Nuclear envelope forms at each pole spindle dissolves chromosomes uncoil. True or False
Doss [256]

Answer:

True.

Explanation:

There are four phases which occur during karyokinesis, these are -

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Telophase is the last phase of karyokinesis. The main events that occur during telophase are-

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Thus it is clear that the events that are mentioned in the question denote truly about the Telophase.

4 0
4 years ago
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