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Author Question: Most marine organisms have the same body temperature and salinity as the surrounding environment. ... (Read 111 times)

casperchen82

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on: Aug 22, 2018
Most marine organisms have the same body temperature and salinity as the surrounding environment. Why?

Question 2

Who was responsible for the environmental movement?
 A) Charles Darwin
  B) Edward Ricketts
  C) Rachel Carson
  D) Sylvia Earle


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jharrington11

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Reply #1 on: Aug 22, 2018
Answer to Question 1

The great majority of marine organisms are cod blooded, or ectothermic, having an internal temperature that stays very close to that of their surroundings. A few complex animals-mammals and birds and some of the larger, faster fish-are warm blooded, or endothermic, meaning that they have a stable, high internal temperature.
Because of osmosis, organisms must be isotonic with respect to salinity or water will move across cell membranes until the salt concentration on either side is the same. That could either cause cells to swell and burst or dehydrate and collapse unless counteracted.

Answer to Question 2

C


casperchen82

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Reply 2 on: Aug 22, 2018
YES! Correct, THANKS for helping me on my review

debra928

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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