Currently, taxonomic domains include ____
a. Kingdom, Phylum, Class, and Species
b. Plantae, Animalia, Fungi, Protista, and Monera
c. Archaea, Bacteria, Eukarya
d. Mammalia, Insecta, Aves, and Plantae
e. North America, South America, Eurasia, Africa, and Australia
ANSWER: c
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Cyanobacteria can derive nutritional carbon molecules by consuming those from other organisms, or by producing them from inorganic carbon (atmospheric CO2) through photosynthesis. In which of the following ecological groups would they also be considered?
A. obligate anaerobes B. both heterotrophic and autotrophic C. chemotrophic D. autotrophic E. heterotrophic
Substance X is more concentrated in the extracellular fluid than in the intracellular fluid. Substance X will move OUT of the cell by ________.
Fill in the blank(s) with the appropriate word(s).
Which algal group contains individuals that are typically unicellular and form siliceous shells?
a. green algae b. red algae c. brown algae d. dinoflagellates e. diatoms
MARs are
a. concentrated at centromeric regions. b. regions of the scaffold that attach to eukaryotic DNA during interphase. c. usually found at the ends of eukaryotic chromosomes. d. regions of the scaffold that attach to eukaryotic DNA during metaphase. e. regions of eukaryotic DNA that attach to the scaffold.