Which metabolic process is common to both aerobic cellular respiration and alcoholic fermentation?
(A) Krebs cycle
(B) Glycolysis
(C) Electron transport chain
(D) Conversion of pyruvic acid to acetyl CoA
(E) Production of a proton gradient
Ans: (B) Glycolysis
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Which statement about antigen recognition in B and T cells is TRUE?
A) B cell antigen receptors can bind to intact freely circulating antigens that are bound to self proteins. B) T cell antigen receptors can bind to intact antigens that are bound to self proteins. C) B cell antigen receptors can bind to intact antigens that are on pathogen surfaces. D) T cell antigen receptors can bind to intact freely circulating antigens.
Communal courting areas are called
A. leks. B. mating structures. C. resource areas. D. arenas. E. None of these choices are correct.
Which gland is active in the building up of the body's defense system and is larger in infants and children?
A) thyroid B) pancreas C) posterior pituitary D) thymus
Recently, the bones (not fossils) of a possible new species of humans (in the genus Homo) have been found on an island in Indonesia (an island nation southeast of Asia). Using radiometric dating, scientists can show that these people were alive as
recently as 17,000 years ago. According to the information in this chapter, why do you think they probably used tools? What will be an ideal response?