What is the deltoid muscle shaped like?
A. a triangle
B. a trapezoid
C. a long thin line
D. a circle
E. a square
Answer: A
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Avery used the enzyme _______ to remove the proteins from the cell extracts
A. protease B. DNase C. RNase D. All of the answers are correct
Identify the structure of the neuron marked D
a. axon terminal b. cell body c. axon d. glial cell e. dendrites
Prokaryotic operons typically include a(n) ________ and a(n) ________ with multiple genes
A) operator; terminator B) operator; promoter C) promoter; repressor D) inducer; repressor E) CAP-binding site; inducer
Evaporation from the leaves of a tree will pull water up through the roots as an unbroken column throughout the entire height of the tree. This feat is possible because of which characteristic of water?
A) surface tension B) cohesion C) absorption D) kinetic energy E) vaporization