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Nastasia [14]
3 years ago
12

serves as a selective barrier for the cell, meaning that it allows some things to pass into or out of the cell but not others.

Biology
1 answer:
Aleks04 [339]3 years ago
5 0
Cell Membrane is a selective barrier.
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Which of these would best fill in the chart for B
Dafna11 [192]

Answer:

where is the chart?

Explanation:

7 0
3 years ago
One gene pair can influence other gene pairs, with their combined activities producing some effect on phenotype; this called ___
svp [43]

Answer:

Epistasis

Explanation:

Genetics can be defined as the scientific study of hereditary in living organisms such as humans, animals and plants

In Genetics, a gene pair has the ability to influence other gene pairs based on their combined activities which produces some effect on phenotype; this is called epistasis.

4 0
3 years ago
What was George H. W. Bush’s “new world order?
katrin2010 [14]

Answer:

“where the rule of law… governs the conduct of nations,” and “in which a credible United Nations can use its peacekeeping role to fulfill the promise and vision of the UN’s founders.”

Explanation:

Theres a video as well :)

6 0
3 years ago
If a DNA molecule is found to be composed of 40% thymine, what percentage of guanine would be expected.
Likurg_2 [28]

Answer:

10%

Explanation:

Chargaff postulated the complementary base pairing rule, where he stated that in the DNA molecule, Adenine (A) will always pair with Thymine (T) and Guanine (G) with Cytosine (C) i.e. A-T, G-C

Chargaff stated that the concentration of purines (Adenine and Guanine) is always equal to that of pyrimidines (Thymine and Cytosine) i.e. {A} + {G} = {C} + {T}

These equal concentration equals 100% in totality i.e. A+G+C+T= 100%

Thymine pairs with Adenine, if there is 40% of Thymine in the DNA molecule, it means there will be 40% of Adenine also. 40 + 40 = 80%. This leaves us with 100-80 = 20% for Guanine and Cytosine.

Since there will be an equal amount of Guanine and Cytosine too, Guanine will therefore, be 20/2 = 10%.

That is, 10% Guanine, 10% Cytosine.

8 0
3 years ago
A nurse is assisting a patient with ambulation. the patient becomes short of breath and begins to complain of sharp chest pain.
melisa1 [442]
The correct option is B.
Having short breath and sharp pains in the chest are indications of cardiac distress and it indicate that the heart is been exerted upon. The first thing the nurse should do is to ask the patient to sit down in order to reduce the exertion force on the heart. Resting will allow the patient to become stabilized, the nurse can then check the patient's need for oxygen application.
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4 0
3 years ago
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