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alexandr1967 [171]
4 years ago
15

How many different species of living things exist today?

Biology
2 answers:
dmitriy555 [2]4 years ago
5 0

Answer:

About Eight million, seven hundred thousand!

Hope this helps :)

lukranit [14]4 years ago
4 0

Answer:

To this day, a total of 1.3 million species have been identified and described, but the truth is that many more live on Earth. The most accurate census, conducted by the Hawaii's University, estimates that a total of 8.7 million species live on the planet.

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Tumor-suppressor genes help prevent uncontrolled cell growth. One that is found mutated (and therefore nonfunctional) in more th
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Answer:

p53 helps the cells from passing on mutations that lead to DNA damage. Hence, it is known as the guardian angel of the cell as it helps fight against cancer. However, if p53 becomes defective or missing, then the mutations will lead to cancer.

Mutations in the p53 can also cause the tumor-suppressing genes to convert into tumor causing genes. Hence, mutations in such kind of genes can be very harmful for the body.

4 0
3 years ago
In a certain breed of plants, dark green is determined by the dominant gene 'G' and light green is determined by the recessive g
stealth61 [152]

Answer:

The answer is 300.

Explanation:

When we cross GG and gg, 100% of the offspring will be heterozygous. If the heterozygotes show 75% penetrance meaning that there is a 75% probability that the plant that has the G gene will actually show it in it's phenotype.

So that means that 75% of the offspring should have dark green color, which means that 300 plants will have the expected phenotype and 100 will not.

I hope this answer helps.

7 0
3 years ago
Long-term activation by nuclear receptors differs from the more transient membrane receptor signaling for what reason
Rama09 [41]
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6 0
3 years ago
4. Read the following sentence from the section "Are All Enzymes Proteins?"
ololo11 [35]

Answer:

D

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Pretty sure that's the correct answer.

6 0
3 years ago
A scientist wants to study the interactions of different birds in the southern part of a desert. What should the scientist to fi
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<span>A scientist wants to study the interactions of different birds in the southern part of a desert. The scientist should identify the local names of the birds, and then identify each bird species by using a dichotomous key. The dichotomous key will help him identify the name of the specimen. Next, identify and the foods each bird eats, then determine the bird's patterns of migration.</span>
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