Condensation and hydrolysis are accomplished in
cells by
a. bonding attraction.
b. the action of enzymes.
c. spontaneous action.
d. functional group interactions.
e. all of these.
Answer: b
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Cyanobacteria, milkweed plants, and oak trees are all considered:
A. primary producers. B. primary consumers. C. secondary consumers. D. tertiary consumers. E. decomposers.
Place these genes in their temporal order of expression from earliest to latest during Drosophila development.
A. Bicoid, Gap, Homeotic B. Homeotic, Gap, Bicoid C. Homeotic, Bicoid,Gap D. These genes are not expressed at different times during development. They are expressed at the same time, but in a different spatial order. E. Kruppel, gooseberry, even-skipped
The stretch reflex
a. is an adaptation that enables humans to hold objects steadily for extended periods if time. b. is activated by stretch-sensitive receptors inside the muscle spindles. c. is a simple, stereotyped, and repeatable motor action. d. is elicited by a sensory stimulus. e. all of these
Infectious diseases differ from genetic diseases in that infectious diseases are usually contagious
Indicate whether the statement is true or false