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).
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.
Myelin has a high ______ concentration.
a. protein b. nucleic acid c. lipid d. carbohydrate
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?