Which of the following is not a mechanical defense employed by plants?
A. hairs
B. silica plates
C. thorns
D. terpenes
E. spines
D
Biology & Microbiology
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What is the most appropriate term for a mature pollen grain?
a. megaspore b. microspore c. male gametophyte d. female gametophyte e. immature sporophyte
Biology & Microbiology
Precancerous cervical cells can be detected by
a. routine Pap smears. b. self-examination. c. a series of blood tests. d. x-ray examinations. e. ultra-sound
Biology & Microbiology
A neuronal axon transmits neural impulses toward its cell body
____________________ Indicate whether the statement is true or false.
Biology & Microbiology
The two fatty acid tails are _________________ , but the phosphate group and its attachments form _____________ head, when reacting with water.
Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology