Which is the correct sequence of structures sperm travels through prior to ejaculation?
a. ductus deferens---epididymis---ejaculatory duct---urethra.
b. urethra---ductus deferens---epididymis---ejaculatory duct.
c. epididymis---ductus deferens---ejaculatory duct---urethra.
d. epididymis ---ductus deferens---ejaculatory duct---urethra.
e. ejaculatory duct---ductus deferens---epididymis ---urethra.
C
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In adults, erythropoiesis exclusively takes place in
A) the liver. B) yellow bone marrow. C) red bone marrow. D) the spleen. E) lymphoid tissue.
The preferred energy fuel for the brain is fat
Indicate whether the statement is true or false
Pain impulses are first processed in the
A) dorsal root ganglion. B) motor cortex of the cerebrum. C) gray matter of the posterior horn. D) cerebral cortex.
What is the building block of a lipid?
A) nucleic acid B) glucose C) glycogen D) fatty acid