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PtichkaEL [24]
3 years ago
9

National tree of uae importance and uses of ghaf tree???

Biology
1 answer:
Varvara68 [4.7K]3 years ago
6 0

- drought-tolerant

- able to withstand the harsh desert environment

- remain green

+ its presence shows that there is water underground

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The antigen-binding sites of an antibody molecule are formed from the molecule's variable regions which are described as so because their amino acid sequences can be different on different antibodies.

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To know more about variable regions of antibodies, refer to the following link:

brainly.com/question/17439586
#SPJ4

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