Variations in hair color arise from differing amounts of ________
A) carotene and hemoglobin
B) carotene and collagen
C) eumelanin and pheomelanin
D) keratin and melanin
E) collagen and elastic filaments
C
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The myosynaptic reflex, also known as __________________ reflex, is provoked by the activation of the muscle spindles in a stretched muscle. ________________________________________
Fill in the blank(s) with the appropriate word(s).
A band of fibers called the _________________ connects the cerebral hemispheres:
a. occipital lobe b. corpus callosum c. motor cortex d. somatosensory cortex
Three molecules that are important energy storage locations in the body are
A. glucose, glucagon, and glycogen. B. ATP, glycogen, and triglyceride. C. ADP, DNA, and mRNA. D. glucagon, insulin, and protein. E. DNA, tRNA, and rRNA.
________ secrete hormones and prohormones in the interstitial fluid, which later enters blood
A) Exocrine glands B) Endocrine glands C) Endocrine and exocrine glands D) Epithelia E) Connective tissue