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kykrilka [37]
3 years ago
10

Which best describes the nucleus of an atom?

Biology
2 answers:
Viefleur [7K]3 years ago
7 0

Answer: C. it is the part of the atom with the greatest mass

Explanation: APEX ANSWER

Maru [420]3 years ago
4 0

Answer;

C. it is the part f the atom with the greatest mass

Explanation;

The nucleus of an atom is a small dense region at the center of an atom that contains protons and neutrons.

Almost all the mass of an atom is located in the nucleus, with a very small contribution from the electron shells.

The protons are positively charged which gives the nucleus a positive charge while the neutrons have no charge.

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Which types of asexual reproduction involve part of an organism breaking off?
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The diagram below represents a food pyramid in an ecosystem.
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I’m pretty sure it’s C
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A geneticist is studying two traits in the fruit fly - eye color and wing shape. They perform a dihybrid cross. If the genes for
Len [333]

Answer:

3/16

Explanation:

<u>According to Mendel's law of independent assortment of genes, when a dihybrid cross involves two genes that assort independently and one of the parents is dominant for the two genes and the other is recessive, the phenotypic ratio of the offspring at F2 would be 9:3:3:1</u>. The proportion of the offspring with the dominant parental traits would be 9/16, those with the recessive parental traits would be 1/16, while those with mixed traits would be 3/16 each.

Assuming the eye color is represented by E and the wing shape is represented by W. At F2

     EeWw    x    EeWw

E_W_ - 9/16 (dominant for both eye color and wing shape)

E_ww - 3/16 (dominant for eye color and recessive for wing shape)

eeW_ - 3/16 (recessive for eye color and dominant for wing shape)

eeww - 1/16 (recessive for both eye color and wing shape)

<em>Hence, the proportion of the offspring with dominant phenotype for eye color and recessive phenotype for wing shape would be </em><em>3/16.</em>

3 0
4 years ago
QUESTION 2 The parts of the scientific method have to be followed in one specific order in all investigations. True False
Lady_Fox [76]
2. True
3. True
4. Because they will ensure valid conclusions regarding the safety of the dam
5. Revise the hypothesis and try again
6. Ask a question
7. Revise your hypothesis and try again
8. After they have drawn a conclusion and analyzed results
9. In order to test their hypothesis
10. True
6 0
3 years ago
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