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Nataly_w [17]
2 years ago
5

What can you say to back the claim that the fossil record supports the theory of evolution?

Biology
1 answer:
masya89 [10]2 years ago
6 0

Answer:

Fossils show the progression of animals through million of year.

Explanation:

Fossils are the primary evidence of the theory of evolution. You can carbon date them to see how old they are. You collect dna from them and compare them to modern animals. That is how we know the crocodiles haven't evolved much for millions of year.

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Which of the following occurs after a virus attaches to a host cell in the viral reproduction process?
koban [17]

Answer:

c. the virus inserts its genetic information into the host

cell

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B. copies of the virus are immediately released from the host

8 0
3 years ago
In a fox population, the allele frequency of a gene for red fur changes from 20 percent to 30 percent.What can be concluded abou
Leni [432]

Answer:

The correct answer would be B. the population is evolving.

It can be explained with the help of natural selection. It is a natural phenomenon by which organisms which are better adapted to the changing environment have better chances to survive and reproduce.

It leads to a change in the allele frequency of that trait in a population.

For example, in the given population, the allele frequency of red fur increases from 20 to 30 percent. That means the population is evolving to adapt to the changing environment.

7 0
3 years ago
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All of the following are found in a chloroplast EXCEPT
Snowcat [4.5K]
It seems you forgot your options, but here are some things found in a chloroplast:

grana
Granal thylakoids
Stroma
Nukleloids (DNA rings)
Ribosomes
Starch granules
membranes

Now, some examples of thing NOT found in a chloroplast:

Endoplasmic Reticulum (that's another organelle)
7 0
3 years ago
Read 2 more answers
1 Point
____ [38]

During Prophase chromosomes condense, and mitotic spindle form, chromosomes are copied, and the nuclear membrane disappears, spindle fibres pull the sister chromatids apart.

Explanation:

Prophase is divided into 2 sub-phases as early Prophase and late prophase.

Early Prophase:

In early prophase distinct thick chromosome like structures, Centrioles move to the opposite poles and, nuclear membrane disappears

By late prophase:

Astral rays and spindle fibres are formed. Spindle fibres attach to the chromosome. Contractions occur in the attachment and sister chromatids are pull apart towards the equator.

Metaphase will follow the prophase.

8 0
3 years ago
E. coli bacteria was spread on both agar plates and incubated for 24 hours. if you wanted to grow up a large quantity of strepto
ollegr [7]

If you want to grow up a large quantity of streptomycin-resistant E. coli, you would require to pick a colony of the bacteria from the streptomycin-positive plate and allow to grow it on a streptomycin positive plate.

<h3>What is E. coli?</h3>

E. coli may be defined as a type of bacterium that is commonly present in the intestinal regions of humans and other animals, some strains of this bacterium can significantly cause severe food poisoning.

The strain of streptomycin-positive is those population of E. Coli which is significantly streptomycin resistant, while the negative strain has the opposite effect.

That's why if you want to grow up a large quantity of streptomycin-resistant, you must remarkably require to pick only a positive strain of streptomycin for E.Coli bacterium.

Therefore, if you want to grow up a large quantity of streptomycin-resistant E. coli, you would require to pick a colony of the bacteria from the streptomycin-positive plate and allow to grow it on a streptomycin-positive plate.

To learn more about E. Coli, refer to the link:

brainly.com/question/9046057

#SPJ4

3 0
1 year ago
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