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Julli [10]
4 years ago
11

Worms move using an hydrostatic skeleton. How do worms move?

Biology
1 answer:
Nadusha1986 [10]4 years ago
8 0

Answer:

The correct answer is B. Worms move through changes in body structure caused by contraction of muscles compressing their watery fluid.

Explanation:

The hydroskeleton consists of a fluid-filled cavity, surrounded by muscles. The fluid pressure and the action of the muscles that border it, serve to change the body's shape and produce a movement such as digging or swimming. The successive contraction of various metamers, which are provided with bundles of circular and longitudinal muscle fibers, stretching and thickening parts of the body, allow it to move horizontally. Hydrostatic skeletons have a role in the locomotion of annelids, nematodes and other invertebrates. The hydroskeleton has similarities with the hydrostatic muscles.

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3 years ago
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4 years ago
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https://afdc.energy.gov › ... › Ethanol

Ethanol Production and Distribution - Alternative Fuels Data Center

Ethanol is a domestically produced alternative fuel most commonly made from corn. ... such as crop residues and wood—though this is not as common.Ethanol is one example of alternative fuels for powering our cars and trucks. Ethanol can be produced in different ways, but most often by microorganisms acting on plant materials such as corn. Advocates argue that burning ethanol would not alter the net emission of CO 2even though when ethanol is involved in combustion it produces CO 2 . What are the pros and cons of producing and burning ethanolEthanol is one example of alternative fuels for powering our cars and trucks. Ethanol can be produced in different ways, but most often by microorganisms acting on plant materials such as corn. Advocates argue that burning ethanol would not alter the net emission of CO 2even though when ethanol is involved in combustion it produces CO 2 . What are the pros and cons of producing and burning ethanolEthanol is one example of alternative fuels for powering our cars and trucks. Ethanol can be produced in different ways, but most often by microorganisms acting on plant materials such as corn. Advocates argue that burning ethanol would not alter the net emission of CO 2even though when ethanol is involved in combustion it produces CO 2 . What are the pros and cons of producing and burning ethanolEthanol is one example of alternative fuels for powering our cars and trucks. Ethanol can be produced in different ways, but most often by microorganisms acting on plant materials such as corn. Advocates argue that burning ethanol would not alter the net emission of CO 2even though when ethanol is involved in combustion it produces CO 2 . What are the pros and cons of producing and burning ethanolEthanol is one example of alternative fuels for powering our cars and trucks. Ethanol can be produced in different ways, but most often by microorganisms acting on plant materials such as corn. Advocates argue that burning ethanol would not alter the net emission of CO 2even though when ethanol is involved in combustion it produces CO 2 . What are the pros and cons of producing and burning ethanolEthanol is one example of alternative fuels for powering our cars and trucks. Ethanol can be produced in different ways, but most often by microorganisms acting on plant materials such as corn. Advocates argue that burning ethanol would not alter the net emission of CO 2even though when ethanol is involved in combustion it produces CO 2 . What are the pros and cons of producing and burning ethanolEthanol is one example of alternative fuels for powering our cars and trucks. Ethanol can be produced in different ways, but most often by microorganisms acting on plant materials such as corn. Advocates argue that burning ethanol would not alter the net emission of CO 2even though when ethanol is involved in combustion it produces CO 2 . What are the pros and cons of producing and burning ethanolEthanol is one example of alternative fuels for powering our cars and trucks. Ethanol can be produced in different ways, but most often by microorganisms acting on plant materials such as corn. Advocates argue that burning ethanol would not alter the net emission of CO 2even though when ethanol is involved in combustion it produces CO 2 . What are the pros and cons of producing and burning ethanolEthanol is one example of alternative fuels for powering

https://afdc.energy.gov › ... › Ethanol

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Answer: The fight-or-flight response is most clearly associated with the release of epinephrine into the bloodstream.

Any physiological reaction occurring due to something which frightens physically or mentally is fight-or-flight response. In order to produce the fight-or-flight response the hypothalamus activation of the adrenal cortical system and sympathetic nervous system takes place. On receiving the signal from hypothalamus the sympathetic nervous system makes the actions of body speed up or gets tensed and body is in an alert condition.

The impulses are sent by the sympathetic nervous system to the smooth muscles and also glands. As a response to it epinephrine or adrenaline and the norepinephrine or noradrenaline is released by the adrenal medulla in the bloodstream. These stress hormones thus bring about changes in the body such as increase in blood pressure and heart rate.


4 0
4 years ago
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