Which of the two systems listed work together to bring oxygen into your body and deliver it to your cells?
A) respiratory and digestive B) urinary and cardiovascular
C) respiratory and cardiovascular D) lymphatic and endocrine
Answer: C
Biology & Microbiology
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The ribs and sternum are considered to be part of
a. both the axial skeleton and the appendicular skeleton. b. the axial skeleton. c. neither the axial skeleton nor the appendicular skeleton. d. the appendicular skeleton. e. the adaxial skeleton
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The __________ is a system of fluid-filled sacs and canals in the inner ear. Fill in the blank(s) with the appropriate word(s)
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Human males have _______ sex chromosomes.
a. XX b. XY c. XO d. three types of e. 23
Biology & Microbiology
Which of the following is the smallest?
A) Eukaryotic cell B) Mitochondrion C) Prokaryotic cell D) Virus
Biology & Microbiology