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AlekseyPX
3 years ago
11

Whats the answer to this

Biology
1 answer:
anygoal [31]3 years ago
3 0

Answer:

Fossil record of vertebrates

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Let’s say A plant cell, normally diploid, completely screws up mitosis during metaphase and pulls full copies of all chromosomes
andrezito [222]

Answer:

4N

Explanation:

Mitosis is the process whereby a cell duplicates or produces another identical copy of itself. The mitotic process, which occurs in four main stages produces two daughter cells that are genetically identical to the parent cell. For example, a diploid organism (2n) will produce two daughter cells with 2n from mitosis.

However, in a case whereby a plant cell (A) screws up mitosis during metaphase and pulls full copies of all chromosomes to one side. This would result in one daughter cell having 4n or tetraploid number of chromosomes. Ideally, mitosis separates the chromosomes equally into the two daughter cells to have 2n each. If one cell has all chromosomes, it means that cell will have all the 4n.

For example, in a diploid human cell with 46 chromosomes (2n). Mitosis should occur in such a way that each daughter cell will have a diploid 46 number of chromosome (2n). However, if all the chromosome ends up in one cell during mitosis, that cell will have 92chromosomes, which is 4n or tetraploidy.

8 0
3 years ago
Explain how mining can be harmful to the environment
allochka39001 [22]

Answer:

It can lead to multiple health hazords like harmful substances and it has a huge waste of rocks and vegatation.

Explanation:

Across the world, mining contributes to erosion, sinkholes, deforestation, loss of biodiversity, significant use of water resources, dammed rivers and ponded waters, wastewater disposal issues, acid mine drainage and contamination of soil, ground and surface water, all of which can lead to health issues in local areas. Some mining methods may have significant environmental and public-health effects.

5 0
3 years ago
In an ecosystem in Africa, lions are predators for zebras. The lion population increases, and they eat more zebras. This decreas
Setler79 [48]
When the population of the zebra decreases, the food for the lions decrease. So, the death rate of the lions would increase. It's all a balance. 

"A" 'The death rate of lions increases.' would be the correct answer.

I hope this helps!
~kaikers
7 0
3 years ago
Read 2 more answers
Refer to the regions A, B, C, and D shown on the U.S. map below.
LuckyWell [14K]

Answer:

from A to C

Explanation:

from A to C

8 0
3 years ago
Why do mahogany trees grow in tropical rain forests?
weqwewe [10]

Answer:

Found within wet and dry tropical forests, it grows in a variety of soil types. Since the 1500s, mahogany has been a prized timber product—a building block for high-quality furniture and musical instruments—valued for its deep reddish color, durability, and beauty

Explanation:

4 0
3 years ago
Read 2 more answers
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