The receptor potential is the ________
A) membrane potential produced when a neurotransmitter molecule binds to its receptor
B) membrane potential produced in the receptor cell by sensory transduction
C) membrane potential produced as an all-or-none phenomenon
D) membrane potential produced at a muscle cell
B
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Which of the following is probably the genetic basis for new and complex structures in plants?
a. gene duplication d. extinction b. asexual reproduction e. gene splicing c. genes that code for flower development
Which bird is a social parasite and lays its eggs
in the nests of other birds? a. catbird b. cowbird c. magpie d. Kirtland warbler e. blue jay
What is the ability of a plant to continue to grow throughout its lifetime?
A) determinate growth B) indeterminate growth C) secondary growth D) vernalization
A population of flowers is in Hardy-Weinberg equilibrium with an allele frequency for white flowers (w) of 40%. What percentage of the flowers will have the colored or dominant phenotype?
A. 40% B. 25% C. 60% D. 84% E. 16%