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zubka84 [21]
2 years ago
6

In two or more sentences, analyze why internal fertilization is more efficient than external fertilization?

Biology
1 answer:
almond37 [142]2 years ago
5 0

Answer:

Although more offsprings are produced by the process of external fertilization but the process of internal fertilization is more efficient as compared to external fertilization. This is because, in external fertilization, it is more difficult for the sperm to find the egg and fertilize it. Even after fertilization, it might be that the zygote gets eaten up by a predator. There are none such risks in internal fertilization. The zygote is protected during the internal fertilization which makes this process more efficient.

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Which of the following statements is a principle of the cell theory that supports the idea that new cell will replace damaged ce
uranmaximum [27]
That principle is that cells are derived from other cells.
8 0
2 years ago
This type of mutation occurs when one or more base pairs are added to the gene sequence. PLEASEEEEE HELPPPPP MEEEE!!!!
aksik [14]

Answer:

Insertion

Explanation:

Mutation is a phenomenon in which the nucleotide sequence of a gene in DNA is changed into a new sequence due to insertion, deletion or  exchange of a gene segment.

Insertion is a type of  mutation in which one or more than pne base sequence in added into the DNA of an organism. This insertion may or may not be dangerous depending on the place of insertion and how it is causing adverse effects on the protein product of the gene.

Here is an example of insertion mutation:

Base sequence: AUG GCC TGC

Product:           met     ala      gln

Insertion:

Base sequence: AUG GCC   C TG     C

Product:              met     ala      Leu

So we can see that the product protein is changed because of insertion.

Hope it helps!

5 0
3 years ago
Read 2 more answers
Which of the following is a producer in the food web shown above?
Orlov [11]

Answer: algae

Explanation:

Algae are found in water environment. It uses photosynthesis to produce its food from carbon dioxide in the atmosphere, also in the presence of sunlight.

Unlike other options, algae is the only producer in the food web

8 0
2 years ago
Read 2 more answers
In some mice, fur color is inherited through incomplete dominance. The colors that are possible are black fur, white fur and gre
denis23 [38]

Answer:

In some mice, fur color is inherited through incomplete dominance. The colors that are possible are black fur, white fur and grey fur. Grey is the trait that is inherited through incomplete dominance. Scenario: a grey fur male mouse and a grey fur female mouse have 8 babies. The offspring that result are: 2 black fur, 5 grey fur and 1 white fur. But this is not what is statistically expected from that cross. Explain why this is still a probable outcome. This is as a result of mutation

Explanation:

Mutation is the sudden change of a gene, from the above explanation mating of an incomplete grey fur dominance with an incomplete grey fur dominance should not have had offspring with 2 black fur, 5 grey fur and white fur. Normal mating should have produced also an incomplete grey fur dominant offspring

8 0
3 years ago
What is the main job of the white blood cells?
Mrac [35]

Answer:

They protect you against illness and disease. Think of white blood cells as your immunity cells. In a sense, they are always at war. They flow through your bloodstream to fight viruses, bacteria, and other foreign invaders that threaten your health.

3 0
2 years ago
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