The chordate notochord is a dorsal longitudinal rod composed of cartilage. Indicate whether the statement is true or false
True
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A disease will be ________ likely to circulate in a community with a high percentage of individuals who are immune to the disease.
A. less B. more
The phylogentic tree is most consistent with which of the following hypotheses:
a. The same types of anole lizards evolved independently on each of the islands b. Each lizard type evolved once on one of the islands and then migraded to the other islands where it evolved into different species c. "Each lizard type evolved on the mainland and was brought to each of the islands, where it evolved into different species" d. All species of lizards appeared at exactly the same time on
The thermal niche of a desert organism __________________.
a. will differ from that of a polar organism. b. will include very low temperatures. c. will include the critical thermal maximum of a polar organism. d. is unlikely to include high temperatures. e. is unlikely to limit its distribution on Earth. f. I don't know the answer
The functional group that characterizes an alcohol is
A. ?NH2 B. ?SH C. ?OH D. ?PO4 E. ?COOH