Bryophytes differ from all other land plants in that they:
a. possess swimming sperm
b. have dominant gametophytes
c. produce spores
d. exhibit alternation of generations
e. produce lignin
b
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To control pathogenic and disease-causing organisms, spices can be fumigated using ________.
A. ammonium gas B. chlorine gas C. heavy metals D. ethylene oxide
A structure found within penguins that is used for storing food for feeding the young is called the:
a. crop. b. salt gland. c. gular pouch. d. amnion. e. cloaca.
The striking dissimilarities in plant communities among different biomes that have the same average yearly amount of rainfall can be explained by the fact that
A) plant communities are influenced more by the acidity of rain than by the amount of rainfall. B) plant communities are not influenced by rainfall. C) plant communities occur randomly, depending on where seeds are blown or carried. D) plant communities evolve more slowly than changes in weather patterns. E) temperature and rainfall interact to influence plant communities.
Which of the following statements about the inner mitochondrial membrane is false?
A) ATP synthase is found in the inner mitochondrial membrane. B) The inner mitochondrial membrane plays a role in the production of pyruvate. C) Electron carriers are found in the inner mitochondrial membrane. D) A gradient of H+ exists across the inner mitochondrial membrane.