When measuring volume using a graduated cylinder, which of the following is a correct statement?
a. Ignore the meniscus
b. Measure the volume at the top of the meniscus curve
c. Measure the volume in the middle of the meniscus curve
d. Measure the volume at the bottom of the meniscus curve
D
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Sexual reproduction in algae utilizes meiosis that results in the production of
A. spores with twice as much DNA as the parental cells. B. gametes with half the amount of DNA as in the parental cells. C. spores with the same amount of DNA as the parental cells. D. swarming cells with the same amount of DNA as the parental cells.
In general, species richness follows a longitudinal gradient
Indicate whether the statement is true or false.
Shells of forams consist of organic matter reinforced by
a. silica. b. cellulose. c. calcium carbonate. d. copper sulfate. e. hydrogen sulfide.
According to Patrick Forterre's hypothesis, viruses are ultimately responsible for ________
A) introducing DNA into the ancestors of Bacteria, Archaea, and Eucarya B) fusing with a bacterium and giving rise to the eukaryote nucleus C) introducing information-processing genes into the ancestral chronocytes D) enabling Archaea to withstand extreme environmental conditions causing mass extinctions