A heart murmur would be associated with the malfunction of which structure?
A) heart muscle
B) aorta
C) heart epithelial tissue
D) atrioventricular valves
E) pacemaker
Answer: D
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Which chamber of the heart pumps oxygenated blood through the human body?
a. right ventricle b. right atrium c. left ventricle d. left atrium
Robert Hooke coined the term cell when studying thin slices of cork. These ________ were the first cells observed because ________
A) dead plant cells; the thick cells walls did not require high resolution or magnification to view B) dead animal cells; they were immobile and did not need to be fixed before viewing C) compartments; they were actually the result of multiple cells that had merged and died to form large compartments that were easy to view D) immune cells; they produce antibodies that embed in the cell membrane to make it visible E) "little rooms"; they were 100 nm in diameter, much larger than most plant cells
Maternal blood and fetal blood are mixed in the placenta
Indicate whether the statement is true or false
Which bacterial structures are important for adherence to surfaces?
A. endospores B. cell walls C. fimbriae D. capsules E. flagella