Cystic fibrosis is a pleiotropic disease
Indicate whether the statement is true or false
TRUE
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Prokaryotes were split into two domains based on differences in
a. staining characteristics. b. metabolic capabilities. c. rRNA sequences. d. cell membrane properties. e. cell wall composition.
Many aquatic invertebrates use this structure to perceive changes in their body's position and
orientation.
a. statocysts b. lateral line c. stereocilia d. saccule e. otoliths
Plants have special groups of self-renewing cells called
A. root cells. B. meristems. C. cast cells. D. chloroplasts.
Whisk ferns, club mosses, and horsetails have all the following characteristics in common with ferns except:
A. all of these plants are seedless tracheophyte plants. B. all of these plants produce flagellated sperm. C. all of these plants form antheridia and archegonia. D. all of these plants require free water for the process of fertilization to occur. E. all of these plants have no vascular tissue.