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labwork [276]
3 years ago
15

A train travels 67 km, north along a straight track in 39 minutes. What is the train's average velocity in kilometers per minute

s .
Biology
1 answer:
vredina [299]3 years ago
8 0

Answer:

2 mine take 80 man to drive across a mass drive to get a car in his car or something right now

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Name and define the 3 wind belts.
xeze [42]
<span><span>Polar Easterlies
</span><span>Prevailing Westerlies (aka Westerlies). </span><span>
Tropical Easterlies (aka Trade Winds). </span></span>
4 0
3 years ago
What color of visible light has the least percentage of absorption by chlorophyll A?
solmaris [256]
As shown in detail in the absorption spectra, chlorophyll absorbs light in the red (long wavelength) and the blue (short wavelength) regions of the visible light spectrum. Green light is not absorbed but reflected, making the plant appear green
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3 years ago
Echinoderms _____. _____ Select one: a. have an exoskeleton of hard calcareous plates b. often use tube feet to move around in t
atroni [7]

Answer:

B. often use tube feet to move around in their environment

Explanation:

Tube feet are tiny tubular projections of echinoderms on the underside (oral side). They are a member of the echinoderm water vascular system.

Tubular feet are used for feeding, breathing and shifting. They are arranged around the sides, in grooves. They work by hydraulic pressure. They are used to transfer food in the centre to the oral mouth, and may stick to surfaces. Tube feet allow certain animals to stick and travel slowly to the ocean floor. for example starfish uses tube feet for the above functions.

Hence, the correct option is B.

4 0
3 years ago
A signal is sent from the soma to the ?
aleksley [76]

All neurons have a cell body called the soma. The nucleus of all neurons are found inside of the soma. The soma sends information to other neurons.

4 0
3 years ago
When testing diffusion over a selectively permeable membrane, you placed different liquids into special containers. The proper s
elena-s [515]

When testing diffusion over a selectively permeable membrane, the proper setup is aimed at putting different concentrations into tubes and the same water volume.

<h3>What is a selectively permeable membrane?</h3>

A selectively permeable membrane is a physical barrier that allows the passage of certain substances but not others.

The cell membrane is a  selectively permeable membrane that cells need to interchange nutrients and waste with their environment.

In conclusion, a suitable experiment to show the process of diffusion in a selectively permeable membrane is to put concentrations of the solute into tubes and the same volume of solvent (water).

Learn more about selectively permeable membranes here:

brainly.com/question/227810

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2 years ago
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