Correct Answer
verified
Multiple Choice
A) The eggs are nonmotile.
B) The gametophyte is structurally more complex than the sporophyte.
C) All vascular plants are oogamous.
D) There is an alternation of heteromorphic generations.
E) The sporophyte is the dominant phase of the life cycle.
Correct Answer
verified
Multiple Choice
A) Azolla
B) Psaronius
C) Botrychium
D) Salvinia
E) Trichomanes
Correct Answer
verified
Multiple Choice
A) tracheids.
B) vessel elements.
C) leaf traces.
D) sieve elements.
E) hydroids.
Correct Answer
verified
Multiple Choice
A) antheridia and archegonia form on the prothallus.
B) gametophyte persists long after the sporophyte has become independent.
C) roots develop by circinate vernation.
D) sporangia are produced on the upper surface of the leaves.
E) rhizomes are the most conspicuous part of the sporophyte.
Correct Answer
verified
Multiple Choice
A) Azolla
B) Salvinia
C) Marsilea
D) Botrychium
E) Ophioglossum
Correct Answer
verified
Multiple Choice
A) were homosporous.
B) were not differentiated into roots, stems, and leaves.
C) had a protostele.
D) became extinct.
E) produced lateral sporangia.
Correct Answer
verified
True/False
Correct Answer
verified
Multiple Choice
A) Azolla.
B) Salvinia.
C) Marsilea.
D) Botrychium.
E) Ophioglossum.
Correct Answer
verified
Multiple Choice
A) primary xylem and primary phloem
B) a pith
C) leaf gaps
D) dermal tissue
E) vascular and cork cambia
Correct Answer
verified
True/False
Correct Answer
verified
True/False
Correct Answer
verified
Multiple Choice
A) above-ground parts becoming structurally similar to the below-ground parts.
B) progressive reduction of the sporophyte.
C) sporophyte becoming nutritionally dependent on the gametophyte.
D) increased protection of the gametophyte by the sporophyte.
E) production of seeds in all lineages.
Correct Answer
verified
True/False
Correct Answer
verified
Multiple Choice
A) apical; ground tissue
B) apical; cork
C) lateral; phloem
D) lateral; xylem
E) lateral; periderm
Correct Answer
verified
Multiple Choice
A) Nutritional dependency of the gametophyte on the sporophyte
B) Reduction in size of the gametophyte
C) Reduction in complexity of the gametophyte
D) Increased prominence of antheridia and archegonia
E) Decreased reliance on water for transferring sperm to egg
Correct Answer
verified
Multiple Choice
A) They are the earliest well-known vascular plants.
B) They lived during the mid-Silurian.
C) They were differentiated into stems, roots, and leaves.
D) They had dichotomously branching stems.
E) They were homosporous.
Correct Answer
verified
True/False
Correct Answer
verified
Multiple Choice
A) the gametophytes are unisexual.
B) a gametophyte may produce a series of sporophytes.
C) water is not required for fertilization.
D) microphylls, but not strobili, are formed.
E) the sporophyte does not usually become independent of the gametophyte.
Correct Answer
verified
Multiple Choice
A) gametophytes with endosporic development.
B) larger gametophytes.
C) bisexual gametophytes.
D) spores differentiated on the basis of size not function.
E) different types of spores produced in the same sporangium.
Correct Answer
verified
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