The upper chamber on each side of the heart is the ventricle.
a. true
b. false
Answer: b. false
Biology & Microbiology
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The cnidarians have an incomplete gut (having only one opening) called the:
a. nematocyst. b. coelom. c. gastrovascular cavity. d. pseudointestine. e. spongeocoel.
Biology & Microbiology
What animal group is mismatched with its circulation system type (open or closed)?
A. earthworm—closed B. lobster—open C. killer whale—closed D. cricket—closed E. oyster—open
Biology & Microbiology
Which of the structures in Figure 48-1 represents the nitrogenous waste urea?
a. 1
b. 2
c. 3
d. 4
e. 5
Biology & Microbiology
Regarding the growth curve, a bacteria is more sensitive to penicillin during the ______ phase
a. stationary b. lag c. exponential (Log) d. stationary and log
Biology & Microbiology