Which of these features is found in both nonvascular and vascular plants?
a. lignin
b. roots
c. cuticle
d. xylem
e. phloem
C
Biology & Microbiology
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The early energy reactions used hydrogen, which is a powerful ________ and could have been used to form ________
A) oxidant / the proton motive force B) electron donor / the proton motive force C) electron acceptor / oxygen D) oxidant / oxygen
Biology & Microbiology
The technique of transferring proteins from SDS-PAGE gels onto a membrane and using labeled antibodies to identify particular proteins is known as a(n) ________.
Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology
Most dinosaurs were extinct by ____ years ago
a. 10,000 b. 1 million c. 500 million d. 65 million e. 1 billion
Biology & Microbiology
Which of the following is not a secondary compound produced by plants?
a. caffeine b. nicotine c. resin d. cyanide e. chlorophyll
Biology & Microbiology