The ancestors of land plants were aquatic algae. Which of the following is not an evolutionary adaptation to life on land?

A) C? photosynthesis
B) a waxy cuticle
C) root hairs
D) xylem and phloem
E) guard cells


Ans: A) C? photosynthesis

Biology & Microbiology

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____ to attract more phagocytic cells.

a. more antigens b. MHC c. cytokines d. antibodies e. complement

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Which of the following may result from eating tuna sashimi (raw fish)?

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If lithium has an atomic number of 3 then it will have one valence electron.

Answer the following statement true (T) or false (F)

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