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krok68 [10]
3 years ago
9

Which of these questions is scientific

Biology
2 answers:
Natali [406]3 years ago
5 0
Hello!

"What is the age of Earth?" Is a scientific question. Scientists have been able to assume Earth's age based on scientific research. 

Options B, C, and D are all examples of questions asking about opinions. None of these three options are considered to be scientific questions. 

I hope this helps you! Have a great day!
Elenna [48]3 years ago
5 0
The A would be a good subject to study
but that depend of you!
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In a praticular breed of cattle, a black coat is dominant over a red coat. If a cow with a red coat is crossed with a black bull
steposvetlana [31]
You are correct :) Red coat's genotype would be tt and the black bull's genotype would be Tt. You put those in a punnett square, and you'd get 2 tt's and 2 Tt's. Hope this helps! :D
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3 years ago
3 year old african american girl, 1 month history abdominal pain and loss of appetite. firm nodular midline upper abdominal mass
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3 years ago
If two people with sickle cell trait have children, what is thechance that a child will have normal RBCs in both high-and low-ox
Vanyuwa [196]

Answer:

See the answer below

Explanation:

<em>The chance that a child from two people with sickle cell trait will have normal RBCs remains the same irrespective of the amount of oxygen in the environment.</em> From the cross:

                  AS    x    AS

            AA    AS    AS    SS

Hence, the chance of having a child with normal RBCs in both high and low-oxygen environments is 1/4 or 25%.

The chance that a child will have sickle cell disease is also 1/4   or 25%.

The possible genotypes in a Punnet's square can be seen in the attached image

4 0
3 years ago
What are three molecules that diffuse freely in and out of a cell
Lunna [17]

So it's going to be obviously oxygen XD        ....so that's one

Next, it's going to be carbon dioxide, since it has to exit the cell, because it is a waste product            ...so that's two

Finally, it's also going to be something you drink everyday.

*whispers* it's water XD      because of osmosis


So recap:

1) Oxygen             2) Carbon Dioxide        3) Water


hope that helps!! :D


4 0
3 years ago
Explain the reciprocal relationship between human society and limiting factors
LekaFEV [45]

Answer:

humans try to modify environment factors to suit their needs. Limiting factors can be controlled in a specific area however, we can't control larger area. Like water or energy.

8 0
3 years ago
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