In general, liverworts have a cuticle and pores. However, some species do not have pores. What would you predict concerning the cuticle of these species and why?
A) The cuticle would be the same as in those species with pores.
B) The cuticle would be thicker than in those species with pores.
C) The cuticle would be thinner than in those species with pores.
C
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At rest, neurons exhibit a negative membrane potential. This is most DIRECTLY due to
A. movements of negatively charged proteins and nucleic acids across the membrane. B. passive leakage of Na+ions across the membrane. C. passive leakage of K+ions across the membrane. D. movement of Na+ ions through voltage-gated Na+ channels. E. movement of K+ ions through voltage-gated K+ channels.
There are ____ basic patterns of Mendelian inheritance
a. three b. four c. five d. six e. seven
Traditional classifications tended to take into account primarily
a. extinct organisms b. RNA similarities c. DNA similarities d. general similarities in appearance
In the ONPG and MUG test for fecal coliforms, a sample that is positive for E. coli will be
A) positive for ONPG; fluorescent in UV light. B) negative for ONPG; fluorescent in UV light. C) positive for ONPG; non-fluorescent in UV light. D) negative for ONPG; non-fluorescent in UV light.