It’s the ninth inning, and the bases are loaded. As the pitcher winds up to throw the ball, how does each tissue in his arm contribute to this critical pitch? The ___________ of his fingers grips the ball. His __________ sends instructions that trigger his ___________ to contract. His ______________ provides stability and transmits the force produced.
A. ectoderm; ectoderm; mesoderm; endoderm
B. connective tissue; nerve tissue; muscle tissue; epithelial tissue
C. epithelium; ectoderm; mesoderm; endoderm
D. epithelial tissue; nerve tissue; muscle tissue; connective tissue
D. epithelial tissue; nerve tissue; muscle tissue; connective tissue
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In the figure above, which of the lines represents the highest per-capita rate increase (r)?
A) line A B) line B C) line C D) line D
Which of the following statements is correct regarding cyclic photosynthetic pathways?
A) Water molecules need to be split. B) Both PSI and PSII are required. C) Proton gradients are not formed. D) No exogenous electron source is required. E) all of the above
Amino acids are joined together in a chain by ____________________ bonds. Fill in the blank(s) with the appropriate word(s)
The immediate ancestors of the genus Homo belonged to the genus:a
Australopithecus. b. Pongo. c. Pan. d. Sahelanthropus. e. Ardipithecus