____________________ secrete hormones into blood. Fill in the blank(s) with the appropriate word(s)


ANSWER: Endocrine glands

Biology & Microbiology

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All components of a muscle have ____ orientation, resulting in ____

a. the same; a concerted pull in the same direction b. the same; a concerted push in the same direction c. a random; a dispersion of force d. a random; a concentration of force in the center of the muscle e. the same; a concentration of force in the center of the muscle

Biology & Microbiology

If a plant were grown in a nutrient solution containing all known essential elements except one, this

would be an example of: a. agriculture. b. mutualism. c. weathering. d. hydroponics. e. salinization.

Biology & Microbiology

Which of the following characteristics is present in all chordates? 

A. gills B. notochord C. vertebrae D. All of the above are correct.

Biology & Microbiology

When a protein is denatured, which level of protein structure is unaffected?

A. primary B. secondary C. tertiary D. quaternary

Biology & Microbiology