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inessss [21]
3 years ago
8

27. What substance is a liquid at -200 °C?

Biology
1 answer:
harina [27]3 years ago
5 0

Answer:

its nitrogen..........

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1. Why is it important to the entire scientific community uses the metric system, rather than each country having its choice to
scoundrel [369]

It is important the entire scientific community uses the metric system rather than each country having its own system because when scientist are comparing or sharing results they wont have to do extra steps of converting to different measurements it will just be the same and less confusing.

Explanation:

4 0
2 years ago
Using what you know about mutation, cellular division(mitosis), and DNA replication, explain how damaged DNA in a stem cell coul
White raven [17]

Answer:

It could largely impact the way you look.

Explanation:

Since 100% of your DNA decides how you look, if even one thing changes, one part of your look would change. Sometimes it's something big like eye color, or sometimes like a small change in skin color.

6 0
1 year ago
Which of the following characteristics of living things best explains why birds fly south for the winter?
Anton [14]

Answer:

In areas that have cold winters, some common bird foods, such as nectar and insects, may not be available year-round. Birds that eat those foods must fly south to find food to survive. Other birds that eat seeds or bugs that live under tree bark often hang around, since they can continue to find food all winter long.

4 0
2 years ago
The two cells formed at the end of meiosis I have chromosomes that are
Shkiper50 [21]

The right answer is C.

Meiosis and fertilization contribute to the stability of the species.

Meiosis ensures the passage of the diploid phase to the haploid phase. It follows a phase of DNA replication and consists of two successive divisions, the second is not preceded by a duplication of DNA. These two divisions lead, from a diploid mother cell (2n chromosomes), to four haploid daughter cells, the gametes (n chromosomes).

Meiosis and fertilization are at the origin of genetic mixing.

During meiosis, intra- and interchromosomal mixing occurs (inducing a genetic diversity between the daughter cells, and they are systematically different from their mother cell).

*Intrachromosomal mixing, or crossing-over recombination, takes place between paired homologous chromosomes during the prophase of the first meiosis division;

*Interchromosomal mixing is due to the independent migration of the homologous chromosomes of each pair during anaphase of the first division. It therefore concerns chromosomes reworked by the intrachromosomal mixing that preceded it.

7 0
2 years ago
Identify four ways viruses contrast with bacteria
lisabon 2012 [21]

Answer:

Viruses are tinier than bacteria.. In fact, the largest virus is smaller than the smallest bacterium.

Unlike bacteria, viruses can't survive without a host.

Unlike bacteria, most viruses do cause disease.

Viruses target bacteria.

Explanation:

8 0
2 years ago
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