PLEASE HELP!! i will mark brainliestWhich argument best explains the charge of an atomic nucleus?
a. an atomic nucleus is positively charged because it is composed of neutrons
b. an atomic nucleus is positively charged because it is composed of protons
c. An atomic nucleus is negatively charged because it is composed of electrons
d. an atomic nucleus is negatively charged because it is composed of neutrons

Answers

Answer 1

Answer:

The correct answer is: an atomic nucleus is positively charged because it is composed of protons, option (b) is correct.

The atomic nucleus is the central part of an atom and is composed of protons and neutrons. Protons have a positive charge, while neutrons are neutral (have no charge). Therefore, the presence of positively charged protons in the nucleus is responsible for its overall positive charge.

Electrons, on the other hand, are found in the electron cloud outside the nucleus and contribute to the overall charge neutrality of the atom since they have a negative charge equal in magnitude to the positive charge of the protons, option (b) is correct.

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Answer 2

Answer:

Answer:

an atomic nucleus is positively charged

Explanation:

because it is composed of protons so A

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Answers

Ans.

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Answers

Endotherms generate most of the heat they need internally. When it's hot outside, they decrease metabolic heat production to keep their body temperature constant. Because of this, the internal body temperature of an endotherm is more or less independent of the temperature of the environment.
Contrarily, Ectotherms' body temperature primarily depends on external heat sources. That is, ectotherm body temperature rises and falls along with the temperature of the surrounding environment. So if it is hot outside their body temperature rises as well.

Answer:

sample response: Endotherms are able to maintain a constant body temperature. An endotherm may respond to a hot summer day by sweating or panting. The body temperature of an ectotherm, on the other hand, changes with its surroundings. In order to stay cool, an ectotherm must move somewhere cooler like the shade of a plant or rock or seek cool water to lay in

Explanation:

8. In an attempt to breed winter barley that is resistant to barley mild mosaic virus, agricultural researchers cross a susceptible domesticated strain with a resistant wild strain. The F1 plants are all susceptible, but when the F1 plants are crossed with each other, some of the F2 individuals are resistant. Is the resistance allele recessive or dominant? How do you know?

Answers

Answer:

The resistance allele is recessive

Explanation:

According to Darwin's pea experiment, the recessive trait appeared after a few generations.

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