The teeth designated by the letter "D" in the above figure are called ____
a. canines
b. premolars
c. incisors
d. molars
e. wisdom teeth
ANSWER: d
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List the components of a nucleosome
What will be an ideal response?
The mucous sheet produced by the endostyle traps the microscopic food particles in the water. This sheet is located in the pharynx of what animal?
A. arrow worm B. tunicate C. acorn worm D. lancelet E. crinoid
Magnetosomes are
A. responsible for the heat resistance of endospores. B. composed of magnetic iron oxide particles. C. found in all bacteria and some archaea. D. infoldings of the cell membrane. E. also termed metachromatic granules.
Which of the following statements about mitochondrial chemiosmosis is NOT true?
(A) A proton gradient is established across the inner membrane of the mitochondrion. (B) The potential energy released from the mitochondrial proton gradient is used to produce ATP. (C) The mitochondrial proton gradient provides energy for muscle contraction. (D) Proteins embedded in the inner mitochondrial membrane play an important role in ATP synthesis. (E) Heat energy is required to establish the electron transport chain.