All of the following statements about ferns are correct except
A. ferns flourish in many habitats, but the majority are located in the tropics.
B. the sporophyte is a conspicuous generation.
C. sori are located on the back or ventral surface of fronds.
D. ferns have underground stems called rhizomes.
E. the gametophyte is a conspicuous generation.
Answer: E
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Mammals are the only vertebrates to possess
A. single loop circulation. B. hair. C. live birth. D. a four-chambered heart with a pulmonary circuit. E. endothermy.
Which of the following is the correct order of
taxa from most inclusive to least inclusive?
a. domain, kingdom, phylum, class, order, family, genus, species b. domain, kingdom, phylum, order, class, family, genus, species c. domain, kingdom, phylum, family, order, class, genus, species d. domain, phylum, kingdom, class, order, family, genus, species e. domain, kingdom, order, class, phylum, family, genus, species
Crossing over occurs between _____.
A) the non-sister chromatids of a pair of homologous chromosomes B) the sister chromatids of a pair of homologous chromosomes C) the non-sister chromatids of a pair of non-homologous chromosomes D) the sister chromatids of a pair of non-homologous chromosomes
The most common joint injury is a
a. separated shoulder. b. fractured knee. c. broken wrist. d. dislocated shoulder. e. sprained ankle.