Circulatory systems
a. are found in all animals.
b. result in slow distribution of nutrients and
gases.
c. include one or more hearts.
d. are always closed systems.
e. are all of these
C
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a. lymph b. lymph nodes c. mucosa-associated lymphoid tissue (MALT) d. spleen
When the heart’s pacemaker malfunctions, ___ can result
a. atherosclerosis b. sudden cardiac arrest c. congenital heart defects d. coronary heart diseases e. hypertrophic cardiac defects
A characteristic that is independently acquired by reversal or convergent evolution exhibits homology
_____________________ Indicate whether the statement is true or false.
All of the following statements concerning characteristics of predator prey relationships are correct EXCEPT
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