Lysozyme, an enzyme found in tears, provides a natural defense against bacteria by
A. hydrolyzing peptidoglycan in cell walls.
B. removing flagella.
C. removing the capsule from outside the cell.
D. dissolving the cell membrane.
E. inhibiting protein synthesis.
Answer: A
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The integumentary system is most involved in ____
a. exchange of gases b. support c. outer body covering d. muscle contraction e. resistance
Please match each category of disease with the correct example.
A. Seizure B. Tumor C. Movement D. Injury E. Mood F. Headache G. Neurodegenerative H. Demyelinating I. Infectious J. Sleep
A vein always carries:a
blood to the heart. b. blood from the heart. c. oxygen-rich blood. d. oxygen-poor blood. e. blood rich in carbon dioxide.
Which class of bones are part of the appendicular skeletal division?
a. skull b. vertebral column c. ribs\
d. pelvis e. sternum