The first primates known for their extensive use of tools were
A) Homo habilis.
B) Homo erectus.
C) Homo afarensis.
D) Homo sapiens.
A) Homo habilis.
Biology & Microbiology
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Which of the following is MOST effective against resistant endospores?
A. Pasteurization B. Autoclaving C. Boiling D. All of these are equally effective against resistant endospores.
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A four-chambered heart, hollow limb bones with supporting struts, and a keeled sternum are features associated with
most modern ____.
a. mammals b. snakes c. turtles d. lizards
e. birds
Biology & Microbiology
How many nucleotides are required to code for 10 amino acids?
A. 30 B. 10 C. 20 D. 3
Biology & Microbiology
Which term best explains why collagen fibers are abundant in tendons?
a. abrasion b. contractility c. protection d. strength e. secretion
Biology & Microbiology