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Luden [163]
3 years ago
11

How is prophase, metaphase and anaphase of mitosis, meiosis I and meiosis II different or the same?

Biology
1 answer:
bulgar [2K]3 years ago
8 0

Answer:

The two main processes of cell division, meiosis and mitosis, have in common their main steps. In both cases the metaphase ( pairing of homologous chromosomes), anaphase (migration of chromosomes to the ends) and telophase (beginning of DNA decondensation and cell division) are very similar.

The greatest difference occurs in prophase I of the meiosis, which involves the process of recombination (cross over), resulting in variability in the gametes.

Another difference is that meiosis is a reductional process, where the final result of meiosis will be gamens with half of the genetic information, and in mitosis both cells will be equal.

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5 0
3 years ago
PLEASE HURRY UP WILL GIVE BRAINLISET AND 30 POINTS THIS IS SCIENCE
diamong [38]

(1)

Troposphere – This is the densest layer and where weather events occur

Stratosphere – This is where the ozone layer is found. Some high altitude aircraft cruise in this layer.

Mesosphere – Temperatures drop with altitude in this layer

Thermosphere – This is where most of the meteorites that enter the earth’s atmosphere burn up. This layer takes up most of the Uv and X-rays from the sun. Most satellites orbiting earth are in this layer

Exosphere – almost akin to space due to the thinness of the layer. Molecules in the layer often escape into space

(2)

A ‘pause’ is a transition between the above-mentioned distinct layers. The tropopause, for example, occurs between the troposphere and the stratosphere and the stratopause between the stratosphere and mesosphere and thermopause is found between thermosphere and exosphere.

(3)

A temperature inversion is a rise in temperatures with altitude in a layer in the atmosphere. One layer exhibiting temperature inversion is the stratosphere. This is due to the ozone layer that absorbs UV light. The upper ozone absorbs most of the UV light, than lower ozone, exciting the molecules and making the higher altitudes in the layer to be warmer.

(4)

The ozone layer protects life on earth from the high energy UV radiation from the sun. UV is capable of causing double-stranded break on DNA resulting in genetic mutations on organisms. Most of these would be lethal. The Ozone absorbs most of the UV before it reaches earth's surface. Ozone is formed when an oxygen molecule reacts with another oxygen atom to form an O₃. The oxygen atoms are made from the splitting of an oxygen molecule by UV light.

Learn More:

For more on the atmosphere check out;

brainly.com/question/13633485

brainly.com/question/2846796

#LearnWithBrainly

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3 years ago
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It’s B I think bro. Use a different app this one sucks
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ladessa [460]
Reproduce and soon take over the island with the ancient power if iguanas, jk jk

though they will reproduce it will depend on the food source and if there is a food source since they are introduced to a new environment they most likely won't have any predators and can eat and move freely as much as they want to.

I hope this helps
 
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