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ki77a [65]
3 years ago
13

Is the information crisis in a cell solved by the replication of the DNA before the cell division?

Biology
1 answer:
Marrrta [24]3 years ago
4 0
Yes, <span>the information crisis in a cell is solved by the replication of the DNA before the cell division. The larger a cell gets, the more demands it places on its DNA. Eventually the DNA cannot meet the cells needs. </span>
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The image below shows a close-up of the crystals formed in a pegmatitic rock. Which characteristic provides the best evidence th
VLD [36.1K]

Answer:

Option C (very coarse texture) is the appropriate one.

Explanation:

  • Everything always cools quickly because once magma reinforces above that of the ocean floor and perhaps the shape it possesses seems to be agricultural context, color temperature, and so on. But as magma settles down underneath the layer, it gets sufficiently opportunity to solidify, culminating in a much more gritty texture as well as color change, respectively.
  • We then assume that perhaps the assumption of whether concrete solidified buried underground correlates to a rather coarse framework.

Other decisions aren't linked to the circumstance issued. So the one above is indeed the best one.

8 0
2 years ago
ANSWER IF YOU ONLY KNOW THE ANSWER- if you use the points just to get points, you'll be reported! :)
NISA [10]
This is because HIV weakens the immune system and so the body becomes more susceptible to infections or illnesses
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3 years ago
A cell has 20 chromosomes. How many cells will there be after meiosis II?
zysi [14]

Answer:

c) 10 chromosomes

6 0
1 year ago
What is the type of organism that breaks down the cells of a dead organism?
ioda
A decomposer breaks down the cells of a dead organism . 
4 0
3 years ago
Cichlids, a type of fish, were introduced to a lake around 200 years ago. Over the years, the fish have developed into two disti
alina1380 [7]

Answer:

sympatric speciation

Explanation:  

Different sympatric species have the same closest ancestor and live in the same area but inhabiting different niches.

The steps for sympatric speciation are:

  1. An ancestral species inhabit a geographic area.
  2. With time, different populations of the same species occupy different niches or microhabitats in this general area.
  3. As the microhabitats are different, they have different environmental pressures that are acting on each population.
  4. These pressures lead to the origin of differences between groups, which need to adapt to each environment
  5. Each population suffers genetic changes due to environmental conditions. These changes are inheritable.
  6. With time, these differences drive to the final complete divergence of populations, becoming different species and reproductively isolated.

In sympatric speciation, the interruption of genetic flow must be fast, and there must be differences in niches so no species can compete and displace the other species. <em>Speciation occurs in the same distribution area of the original species</em>. The new species originate in a place with no physical barriers but different environmental pressures.

In the exposed example,

  • <em>The introduced Cichlid fishes 200 years ago</em> → Original species and the common ancestor between the new derivated species
  • <em>The lake</em> → general geographic area
  • <em>The main lake and the streams</em> → Microhabitats or niches with different pressures each
  • <em>The groups are splitting into two genetically and physically different types of fishes. They do not mate. There is no genetic flow between groups.</em> → Speciation process.
7 0
3 years ago
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