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Very similar to blood plasma and contains many useful substances like water, glucose, salt. It also contains waste products like urea.

Explanation:

Not really an explanation but, just think about what the kidney tubules are made of and you should start to gradually piece together what it contains.

correct answer: biotic and abiotic limitations

carrying capacity is defined as the total number of an organism who can be supported in a given area within the natural resources limit and without harming or degrading the natural, economic or the cultural environment present for the future generations.

carrying capacity is determined by the limiting factors, which are known to affect the natural resources available. it may include water, nutrients, minerals, space, light etc.

explanation:

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the most logical answer would be a