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svetoff [14.1K]
3 years ago
6

How many germs does a dog have?

Biology
1 answer:
Nostrana [21]3 years ago
5 0
Lol. Is this a multi choice?

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DNA wrapped around histone proteins forms a material called ____ which condenses tightly to form _____ that can be seen with a l
makkiz [27]

Answer:

The correct answer will be-

1. Nucleosomes

2. Chromatin

3. Sister chroamtid

4. Centromere

Explanation:

The DNA is a very long molecule which if has to be passed on to the daughter cell as it is will cause problems. So, to reduce problems a cell form tightly packed structure of DNA so that they can be passed easily to the daughter cell.

The packaging of DNA begins with the wrapping of the DNA around histone proteins which forms the 11 nm basic structural units called nucleosomes. The nucleosomes start condensing each other and form 30 nm structure chromatin fibres.

The chromatin fibres undergo replication during S phase which produces an exact copy of the chromatin called sister chromatids bound to each other at a central point called centromere which helps the separation of the chromatids during M phase.

5 0
3 years ago
PLEASE HELP!
mash [69]

Based on current data;

  • The amount of carbon dioxide put into the atmosphere annually dueto human activities is 840 gigatons
  • The amount of carbon in the atmosphere is 10 gigatons
  • The amount of carbon stored in fossil fuels is 10,000 gigatons

<h3>What is the carbon cycle?</h3>

The carbon cycle a cycle showing how carbon is recycled between the atmosphere and earth.

The carbon cycle ensures that their is a balance of carbon in the atmosphere as well as on earth.

Human activities have increased the amount of carbon in the atmosphere.

The amount of carbon dioxide human activities put into the atmosphere annually in the present day is 840 gigatons.

The amount of carbon in the atmosphere is 10 gigatons

The amount of carbon stored in fossil fuels is 10,000 gigatons

Therefore, it can be concluded that human activities disrupt the carbon cycle.

Learn more about carbon cycle at: brainly.com/question/24293689

7 0
1 year ago
What is the energy source for almost all life on earth
Katyanochek1 [597]
The Sun is the energy source for almost all life on earth.
3 0
3 years ago
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What unit of measurement is most appropriate for measuring the size of atoms?
Naddika [18.5K]
A "micrometer" is the best unit of measurement for measuring the size of an atom. 
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3 years ago
Because humans cannot produce their own food what type of organism are they?
kondaur [170]
Humans are called heterotrophs
6 0
3 years ago
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