Hi the T and B cells change after contact with the pathogen is a-- acquired-- immune response.
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Answer:
A. Producers
Explanation:
Each level higher reduces by 10% so the bottom will have the most biomass.
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Answer:
Yes The cap is present on all roots except those of parasites and in mycorrhizal roots .The roots of aquatic plants have vestigial caps when young but the initial soon die and the cap disappear. The calyptrogen initiate root cap in monocots. In the dicots the cap appears to be a specialized development of the epidermis. In Monocots the cap has attained independent origin.
