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castortr0y [4]
3 years ago
6

What structure is part of an echinoderms water vascular system?

Biology
1 answer:
lilavasa [31]3 years ago
4 0

The water vascular system controls the tube feet hydraulically through a complex of fluid filled canals and reservoirs. Unlike other echinoderms, the madreporite of the holothuroideans is located internally below the pharynx and opens to the coelom instead of the outside world.

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Barry is 65 years old and is worried that he will catch a cold that could escalate to something worse due to his age. what shoul
drek231 [11]

Barry should wear warm clothing during cold weather. He should also include meals and fruits with the required vitamins such as vitamin C in his diet to boost immunity and also exercise regularly to improve his overall health. Besides he may take vitamin c boosters. Lastly, avoid congested areas.

4 0
4 years ago
Earthworms help farmers. Many farmers add them to their farmland because they help form rich soil to grow crops in. Explain what
vova2212 [387]

Answer:

Earthworms are Invertebrates and or soil Invertebrates

Explanation:

Remedial measures may be taken to promote beneficial organisms, thereby inhibiting the growth of destructive soil organisms...Can do so, because these soil invertebrates live their whole lives(most do) in the soil, adapted to, helping, and benefiting from the environment. Allowing them to act as . defenders for the soil.

5 0
3 years ago
The pH indicator bromothymol blue is an alkaline solution and yellow is an acidic solution. A slight increase in acidity. Such a
spayn [35]

Water plants in the solution are placed under a bright lamp. Thus, option "B" is correct.

<h3>Explain your answer briefly?</h3>

As we know adding carbon dioxide in as solution result in the change of its acidity this is result in the indicator to change from blue to yellow. In the question, it is asked that what factors from the given option will cause yellow indictor to blue which means what factors cause the solution to be alkaline from acidic.

Placing the green water plants in the solution under a bright lamp will cause the is utilizing and remove present carbon dioxide in the solution and leads the to blue color from the yellow color of the solution.

Thus, this could be the answer.

The question is incomplete, however, the missing part is given as below:

A. Yeast cells and sugar are placed in the solution. B. Water plants in the solution are placed under a bright lamp. C. Algae are placed in the solution and left in a dark room. D. A person blows air into the solution through a straw.

To learn more about  pH indicator click here:

brainly.com/question/16236741

#SPJ

7 0
2 years ago
The Sun appears to move from ______________________ to _______________________________across the sky
I am Lyosha [343]

Answer:

East to West

Explanation:

6 0
4 years ago
How do volcanoes function as a disruptive force? Check all that apply.
cluponka [151]

Answer:

- force people to flee their homes

- cause massive earthquakes

- pollute the air with volcanic smoke

- make airplanes fly around ash clouds

Explanation:

The volcanoes can be seen as both creative and disruptive force. The disruptive side of the volcanoes includes numerous things. Because of the big pressure that the volcanoes make on the crust, it is very common that they create earthquakes, some being very strong. They release enormous amounts of gases, ash, and pyroclastic material, resulting in pollution of the air. The gases and ash can stay in the atmosphere for longer period of time, as well as travel over long distance, making the airplanes change their routes and go around them, or stop their flights until the air clears out. The volcanic eruptions themselves are very dangerous for the people, be it calm with lava flows, or with explosive eruptions, the people a forced to flee their homes and leave everything behind in order to save their lives.

5 0
4 years ago
Read 2 more answers
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