In figure (b), what was the independent variable?
A. the age of the fish
B. the generation
C. the size at which the fish were harvested
D. the species of fish
E. the mean weight of harvested fish
A. the age of the fish
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The structure labeled "C" is the
a. right ventricle. b. left atrium. c. left ventricle. d. trunk of the pulmonary arteries. e. right ventricle
Organisms such as prokaryotes (bacteria and archaea)?along with some eukaryotes?reproduce asexually
In the case of bacteria and archaea in particular, which exchange DNA but do not reproduce utilizing conventional sexual reproduction, the BEST way in which to define species is with ________. A) the morphospecies concept B) the phylogenetic species concept C) the biological species concept D) an ecological species concept
What does it mean to say that double-stranded nucleic acids are antiparallel?
What will be an ideal response?
The primary source of energy for hydrothermal vent communities is from
A) the heat of the water emerging from the vents. B) oxidation of photosynthetic bacteria in the vent water. C) sulfur bacteria. D) reduction of carbon dioxide in the vent water.