An advantage that pollen grain evolution gave gymnosperms was:
A) less energy to produce than gametes.
B) airborne sperm transport over great distances.
C) spores with a small food supply inside.
D) eggs no longer had to swim.
Correct Answer:
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Q4: Bryophytes lack:
A)chlorophyll.
B)spores.
C)gametes.
D)vascular tissue.
Q5: Woody plants have which two compounds in
Q6: Pollen grains contain:
A)spores.
B)eggs.
C)sperm.
D)wings.
Q7: In general,a seed is a:
A)protected plant embryo
Q8: In alternation of generations in all plants,the
Q10: A major difference between gymnosperm and angiosperm
Q11: Besides cell walls,features often found in plant
Q12: Both mosses and ferns "show their aquatic
Q13: Which of the following is characteristic of
Q14: Which of the following weather conditions would
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