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tahmidtaj150
11.02.2020 •
Biology
Aquatic animals, in general, face more of a challenge when extracting oxygen from their environment than do terrestrial animals. Why?
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Ответ:
water has less oxygen than air
Explanation:
All animals require oxygen in order to breath. However aquatic animals face more challenge in obtaining oxygen compared to terrestrials this is because of water having less oxygen.
The inadequacy of oxygen is due to air being less dense than water hence less flow of oxygen.
Therefore, in order for aquatic animals to obtain oxygen, they will have to process 30 times more water to get the same amount of oxygen as terrestrial animals.
Due to this problem, aquatic animals poses gills that have an extremely large surface area to absorb oxygen.
Ответ:
.
In order to extract oxygen aquatic organisms face laborious tasks,This is because oxygen concentration of aquatic medium is very low, (compare to the atmosphere) because of the need to mix and dissolve in water. There it takes more processing, mechanisms for these organisms to extract dissolved oxygen, compare to terrestrial animals
In addition, the relatively high density of water compare to air reduces the flow and diffusion of dissolved oxygen. Therefore to extract oxygen which must flow on their respiratory surfaces , aquatic organism must expend large amount of energy to expand these respiratory surfaces for a large surface area needed for extracting Oxygen.
Explanation:
Ответ:
Two electrons spinning in opposite directions have oppositely aligned magnetic fields, which allows them to come together as a pair.
Explanation: