In lichens, the fungi send projections of their hyphae across the algal cell wall in order to obtain nutrients from the photosynthetic partner. These projections are called
A. hyphal extensions.
B. lichenthropes.
C. haustoria.
D. mycelia.
Answer: C
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A. translocation; translation B. translocation; secretion C. secretion; translocation D. transcription; translation E. secretion; translation
Which characteristic is descriptive of a population experiencing geometric population growth?
a. population doubles in size after each generation b. graph of the population growth produces a "J" shaped curve c. per capita growth rate remains constant d.
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Which of the following Kds for binding that ligand would be optimal for a receptor involved in a responsive signaling system? A) 10?10 B) 10?9 C) 10?8 D) 10?7 E) 10?6
________ is responsible for receiving, interpreting, and producing a response to stimuli.
A. Epithelial tissue B. Muscle tissue C. Connective tissue D. Nervous tissue