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2 years ago

_____ is the measurement of the density of a substance as compared to water.

Biology

2 answers:

denpristay [2]2 years ago

8 0

D. Specific gravity

tester [92]2 years ago

7 0

Answer: Option (D) is the correct answer.

Explanation:

When density of a substance is measured with respect to the density of a standard substance which is usually water then the ratio is known as specific gravity.

Whereas density is defined as the mass of a substance present in per unit volume.

Mathematically, Density = $\frac{mass}{volume}$

For example, specific gravity of water is 1 and a substance that has specific gravity less than specific gravity of water will float otherwise it will sink.

So, specific gravity of mercury is 13.6. Hence, it will sink in water.

Thus, we can conclude that specific gravity is the measurement of the density of a substance as compared to water.

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Vika [28.1K]

<h2>Answer</h2>

Where low tide occurs?

Low tides occur between two high tide areas. They form 90 degree angles with the moon.

Where high tide occurs?

Parts of the earth when facing the moon, those parts experience the pull force, cause high tides. They occur in the areas closest to and farthest from the moon.

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2 years ago

Fluid transported by the lymphatic vessels is called:

Readme [11.4K]

Hello There!

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3 years ago

Neurons in the ______ , control motor reflexes.

yan [13]

Neurons in the <u>spinal cord</u>, control motor reflexes, which allows rhythmic and automatic movements to be carried out.

The spinal cord represents the lowest level in the hierarchical system that regulates reflex motor activity, voluntary movements, and body posture.

Therefore, their neurons have been organized into circuits that participate in simple automatic gait movements and simple defensive movements (withdrawal of the muscle in the event of any aggression) through reflex responses.

The motor neurons of these circuits are located in the anterior horns where they are arranged forming the so-called "poles" of motor neurons, equivalent to true motor neuron nuclei.

Alpha motor neurons their axons are myelinated and they group together in the medulla and form columns that are known as motor nuclei.

Gamma (γ) motor neurons innervate muscle fibers of the muscle spindle.

Interneurons can be excitatory or inhibitory.

Therefore, we can conclude that neurons in the spinal cord, control motor reflexes, they present functional interactions between them and this allows rhythmic and automatic movements to be carried out with ease through reflex responses.

Learn more here: brainly.com/question/3597766

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2 years ago

The graphs here show the distribution of beak depths for the ground

dedylja [7]

Answer: (A) Natural selection tend to reduce genetic variation as there was a smaller distribution of beak depths, but it tends to select for the most fit phenotypes, as there was an increase in average beak depth after the drought.

Explanation: The picture below shows proof if needed. On USATP

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2 years ago

A scientific name has to refer to what

baherus [9]

Answer:

A single species

Explanation:

To be useful, a scientific name has to refer to a single species.

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2 years ago