Yes, protists have cell walls.
Protists cell walls are made of composed cellulose, protein strips , and silica
For some protists, we can even found components like pectin on the cell walls
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Answer:
A
Explanation:
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Answer:
The assimilation of the primary consumer is 5000 kcal/m2/yr, option C.
Explanation:
From the information in the question, the Net Production Efficiency, NPE can be calculated using 100Cp/AS.
Where CP is the consumer productivity and AS is the Assimilation.
Therefore, 20 = 100 x 1000/AS
AS = 100,000/20 = 5000 kcal/m2/yr. Option C.