Brain-heart infusion, trypticase soy agar (TSA), and nutrient agar are all examples of which type of media?
A. synthetic
B. enriched
C. reducing
D. complex
E. selective
Answer: D
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In which habitat should one find snapping shrimp most closely related to shrimp that live in habitat A4?
A) A3 B) A5 C) B4 D) either A3 or A5 E) any species from any one of the side A habitats
The figure below shows what happens in insect populations when crops are sprayed with insecticides. This is an example of ________.
A) natural selection B) genetic drift C) founder effect D) gene flow
A bird building a nest in a tree is an example of what type of symbiosis?
As a result of receptor up-regulation:a
the number of genes that code for a receptor increases. b. the sensitivity of a cell to a hormone decreases. c. the number of receptors decreases. d. the concentration of hormone molecules in the blood increases. e. a hormone's signal is amplified