What is the individual subunit of nucleic acid called?
A) ribonucleic acid
B) deoxyribonucleic acid
C) purine
D) nucleotide
E) pyrimidine
Answer: D
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The hormone __________ is secreted by the adrenal cortex and causes the kidneys to retain sodium.
Fill in the blank(s) with the appropriate word(s).
Myelin has a high ______ concentration.
a. protein b. nucleic acid c. lipid d. carbohydrate
A hypothetical postsynaptic neuron has three presynaptic inputs->X, Y, and Z. When X and Y are stimulated simultaneously, the postsynaptic neuron undergoes an action potential, yet when X and Z are stimulated simultaneously, there is no change in the postsynaptic neuron's potential. What can you logically conclude?
a. Y and Z are both excitatory. b. Y and Z are both inhibitory. c. Y is excitatory and Z is inhibitory. d. Y is inhibitory and Z is excitatory. e. Not enough information to answer.
The triceps brachii attaches to the olecranon process. When the triceps brachii muscle contracts, what movements does it produce?
What will be an ideal response?