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3 years ago

Cara is explaining to her sister how the solar system formed. Which description would she use to explain the solar nebula

Biology

1 answer:

Alexandra [31]3 years ago

3 0

Answer:

The correct answer is A. a rotating cloud of dust and gas.

Explanation:

Nebulae are regions of the interstellar medium (clouds) made up of gases (mainly hydrogen and helium) and dust. In other words, nebulae are concentrations of gas in which we find hydrogen, helium and stardust in greater quantities. They are structures that are actually very important for the universe, this because inside it is the place where stars are born, which arise due to the condensation and aggregation of matter. The nebular theory states that the Solar System reached the form current from a solar nebula (a gas cloud), more than 4.5 billion years ago. The large cloud of molecular gas was affected by a certain phenomenon that would have taken place in the vicinity. Like the explosion of a supernova or the passage of a star that would produce a strong gravitational impact. The result of this event made the matter agglomerate in different places. The high concentration of matter caused the nebula to collapse. Becoming a protostar, (bodies whose characteristic is to be surrounded by clouds and contain preplanetary matter inside), that is, gaseous matter in the outermost part and solid inward. At the core of this structure, the temperature is so dominant that nuclear reactions take place to compensate for the gravitational force. This leads to a hydrostatic equilibrium and the formation of a fundamental star: the Sun. The rest of the mass flattened, forming a protoplanetary disk where the protoplanets were being formed, which would evolve to become the current planets, their satellites and the others bodies of the solar system.

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Based on the information in the question, we can infer that the question being asked is most likely "<u><em>What mechanisms do fish use to maintain homeostasis in salt-water environments</em></u>?".

<h3>What is homeostasis?</h3>

Homeostasis is a series of regulatory processes by which an organism <em><u>maintains core values (or range of values) necessary for everyday life.</u></em>

<h3>How to test the question</h3>

The question is in the form of a hypothesis.
This means that the scientist must first propose a possible solution to the question.
Then, the scientist will make observations based on this question.
In this case, it would seem the scientist has placed the fish into an environment <em><u>that differs from its natural habitat, in order to observe how the fish maintains homeostasis. </u></em>

Therefore, we can infer that the most likely question being asked is in regards to the way in which fish maintain homeostasis.

To learn more about homeostasis visit:

brainly.com/question/9087319?referrer=searchResults

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3 years ago

A 75-year-old male with long-standing hypertension and angina due to coronary heart disease presents with ankle edema, nocturia,

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<h3>C. Explain the management and treatment for this diagnosis.</h3>

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With this information, we can conclude that left ventricular hypertrophy increases the chance of sudden death. Studies have shown that the problem increases the risk of developing some diseases, such as heart failure, stroke, coronary heart disease and even sudden death.

Learn more about Left ventricular hypertrophy in brainly.com/question/19789775

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