Which flower structure produces the male gametophyte?
a. Ovule
b. Carpel
c. Flower
d. Stamen
e. Petals
d
Biology & Microbiology
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Which of the following is true about the bacterium P. aeruginosa?
a. It contains many mitochondria because it actively divides. b. It has a cell wall. c. All its genetic material is contained in a circular plasmid. d. It is a eukaryote
Biology & Microbiology
Sugar is conducted in solution through specialized cells known as:
a. fibers. b. companion cells. c. sieve tube elements. d. tracheids. e. vessels.
Biology & Microbiology
A hemocoel or blood cavity is found in or associated with
A) all animals. B) sponges. C) an open circulatory system. D) acoelomates. E) cephalopods.
Biology & Microbiology
Lichens are formed by symbiotic relationshipsthat may involve any of the following except
A. green algae. B. cyanobacteria. C. protists. D. sac fungi. E. ascomycetes.
Biology & Microbiology