Many forest plants and animals have been found to have chemicals in them that can be used for medicines. Which of the following is least helpful in preserving this resource?
A) encouraging paper and wood recycling B) limiting new housing developments
C) promoting nut tree growing D) eating more hamburgers
Answer: D
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During long-term potentiation the release of the neurotransmitter glutamate triggers the opening of sodium and calcium channels in the postsynaptic cell, increasing ion flow. What type of channel is responsible for this increase in ion flow?
A. voltage-gated ion channel B. ligand-gated ion channel C. ttretch-gated ion channel D. pump protein
In genetics, a chi-square test can be used to determine ____
a. whether an organism with a dominant phenotype is homozygous or heterozygous b. whether an allele exhibits complete or incomplete dominance c. what the predicted outcome of a dihybrid cross will be d. how closely actual results of a cross match the expected results e. whether a trait is determined by one gene or many genes
In the Kotukutuku plant, fuchsia excortiata, pollinated flowers turn colors from ________ to ________ in order to signal pollinators that nectar is no longer being produced
A) red; yellow B) red; green C) green; red D) green; yellow E) green; white
Adult stem cells in the brain are totipotent and differentiate into neurons and glial cells
_________________ Indicate whether the statement is true or false.