When you bring your hand to your shoulder, your biceps muscle ____ and your triceps muscle ____
a. contracts; relaxes
b. relaxes; contracts
c. contracts; contracts
d. relaxes; relaxes
e. lengthens; shortens
ANSWER: a
You might also like to view...
The growth rate of a given species of microorganism is dependent on the composition of the medium in which it is grown.
Answer the following statement true (T) or false (F)
Which class of molecule is the most diverse in terms of structure and roles played in cells?
a. proteins b. lipids c. nucleic acids d. carbohydrates e. amino acids
Which syndrome is characterized by a karyotype with 45 chromosomes?
a. Turner b. Down c. androgen insensitivity d. Klinefelter e. cri-du-chat
Stanley Miller's experiment
A. proved the origin of life. B. demonstrated that complex organic molecules might have been formed on primitive Earth. C. showed how energy created life. D. disputed the Oparin hypothesis.