Muscle cells are produced by
a. the ectoderm.
b. the endoderm.
c. the mesoderm.
d. the ectoderm and endoderm.
e. all of the germ layers.
Answer: c
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Part complete Synthesis of most ATP takes place in the
a. mitochondria. b. smooth ER. c. rough ER. d. golgi apparatus. e. ribosomes.
What human activity can cause flooding along riverbanks?
A) Removal of forests and wetlands along the river B) Decreased conversion of forests to farmland C) Decreased soil formation D) Overfishing E) Increased evaporation due to fewer trees
Which of the following processes occurs in eukaryotes but not prokaryotes?
A) DNA replication B) capping C) transcription D) translation E) gene regulation
A new vaccine for the upcoming flu season is developed from an influenza isolate designated A/Shanghai/2/2013(H7N9). This nomenclature means the isolate is
A) a type A with antigens HA 7 and NA 9 isolated in Shanghai in February 2013. B) a type A with 7 HA antigens and 9 NA antigens isolated in Shanghai in February 2013. C) the second type A strain with HA 7 and NA 9 antigens isolated in Shanghai in 2013. D) a type B strain with antigens HA 7 and NA 9, first isolated in February 2013. E) a hybrid of 2 type As combining 7 HA and 9 NA antigens, created in February 2013.