Which of the following is true of the sensory system?
A. Sense organs interpret the information received.
B. Sense organs respond to hormonal stimulation.
C. Cells in sense organs depolarize and stimulate neurons.
D. Neurons send messages to sensory cells, to which the sensory cells respond.
C. Cells in sense organs depolarize and stimulate neurons.
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ws+; ws+; ws; ws; ws+; ws+; ws; ws
In Neurospora, the white-spore allele (ws) results in white spores rather than the wild-type black spores. Diploid ws / ws+ cells undergo meiosis followed by one round of mitosis to form ordered tetrads. Indicate if the pattern of spores seen in the tetrads are consistent with first-division or second-division segregation. A) first-division segregation pattern B) second-division segregation pattern
Which of the following terrestrial ecosystems has the highest rate of primary productivity
A) tropical rainforest B) prairie C) tundra D) marsh E) temperate rainforest
What feature enables the paramecium to move?
a. nucleus b. cilia c. flagella d. pseudopodia e. contractile vacuole
The following characteristics all helped seedless plants become better adapted to land except
A) a dominant gametophyte. B) vascular tissue. C) a waxy cuticle. D) stomata on leaves. E) a branched sporophyte.