Which of the following cells are alive at
maturity?
a. sieve tube members
b. vessel members
c. tracheids
d. fibers
e. sclerids
A
Biology & Microbiology
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Chloroplasts and mitochondria in eukaryotes are thought to have originated by ____ , where one organism lives within another
Fill in the blank with the appropriate word.
Biology & Microbiology
The most predominant anaerobe isolated in animal bites is:
a. Veillonella spp. b. Clostridium spp. c. Prevotella spp. d. Fusobacterium spp.
Biology & Microbiology
The site of fertilization is labeled
a. 1. b. 2. c. 3. d. 4. e. 5.
Biology & Microbiology
Which of the following groups contains
organisms that produce free-living larvae? a. cnidarians b. echinoderms c. arthropods d. cnidarians and echinoderms e. cnidarians, echinoderms, and arthropods
Biology & Microbiology