Which of the following is the lineage of green algae believed to most resemble early plant ancestors?
A) charophytes
B) ulva
C) volvox
D) dinoflagellates
A
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As filtrate moves through the ____ in mammals, it generally undergoes a dramatic decrease in osmolarity
a. distal convoluted tubule b. Bowman's capsule c. descending segment of the loop of Henle d. proximal convoluted tubule e. ascending segment of the loop of Henle
The first federally approved gene therapy test on humans was designed to treat
a. severe combined immune deficiency. b. diabetes. c. cystic fibrosis. d. hemophilia. e. leukemia.
The frequency of heterozygotes for cystic fibrosis shows ethnic variations
a. True b. False
What happens when you place a bacterial cell into a hypertonic solution?
A) lysis B) no effect on the cell C) plasmolysis D) The cell will burst. E) The cell will swell.