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3 years ago

Which of the following best describes a spiral galaxy?

Biology

2 answers:

Andru [333]3 years ago

8 0

A galaxy where mainly stars and planets form around one or more spiral arms. (usually more?)

Rus_ich [418]3 years ago

8 0

<span>Several billion stars arranged in arms spiraling outwards

because </span><span>Spiral galaxies have a central core from which curved arms spiral outward</span>

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Two principal approaches governing the study of animal behavior

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Answer:

Ecological and ethological approaches to the study of behaviour. The natural history approach of Darwin and his predecessors gradually evolved into the twin sciences of animal ecology, the study of the interactions between an animal and its environment, and ethology, the biological study of animal behaviour.

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3 years ago

1. Energy transfer is inefficient between trophic levels because

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Answer: b dead organisms And waste are recycled throughout the tropic levels.

Explanation:

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Which of the following is not a potential benefit of the Human Genome Project:

34kurt

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discovery of DNA is not a benefit of Human Genome Project

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3 years ago

How did the Oregon system make the political process more democratic

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Answer:

generally considered to have originated in the late nineteenth century as a reaction to the abuses of big business and the problems that plagued the lower socio-economic classes of that era.

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3 years ago

in 6-8 sentences, explain how stream volume and speed affect the size, shape and flow of streams and rivers.

sukhopar [10]

Explanation:

The higher the volume of water in a stream, the higher its speed and the wide its size and shape which ensures a proportionate flow rate.

To quantify how the speed of stream, we use the quantity, discharge in hydrology;

Discharge is the volumetric rate of water flow past a point at a particular time.

Discharge = $\frac{volume of water}{time}$

We see that discharge is directly proportional to the volume of water in a stream.
It is inversely proportional to the time taken.
We know that volume is the amount of space occupied by a body. It is function of its size and shape.
A big water body that is deeper, wider and longer will have more wate and a greater discharge.

learn more:

Rejuvenation brainly.com/question/14372082#

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3 years ago