The main function associated with the structure of villi and microvilli is
a. secreting digestive enzymes.
b. increasing surface area.
c. secreting hormones.
d. trapping bacteria.
e. moving food through the intestines.
B
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Imagine that you are studying a mammal with a mutation that prevented the growth of hair. What issues do you predict would be problematic for this animal as a result of lacking hair? Check all that apply.
_____ retaining body heat _____ sensing environmental changes _____ hiding from predators _____ defense against predators _____ ability to digest plants
Describe the secondary response to an antigen
What will be an ideal response?
The modern term derived from the Greek root words meaning "ancient," "having existed," and "study of" is
A. anthropology. B. biogeography. C. museology. D. paleontology. E. sedimentology.
Which genus is the most common resident flora of mouth surfaces?
A. Mycobacterium B. Streptococcus C. Haemophilus D. Escherichia E. Lactobacillus