A freshwater fish gains most of its water by _____
a. drinking c. osmosis
b. eating food d. transport across the gills
C
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____ are most responsible for the symptoms of inflammation
a. Cytotoxic T cells b. Macrophages c. Mast cells d. Neutrophils e. Eosinophils
Philodendron flowers have to use a lot of energy to attract beetles as pollinators. This is similar to the energy used by many other flowering plants to produce in order to attract pollinators.
A. spores B. nectar C. seeds D. leaves E. pollen
Which of the following is the correct sequence of hierarchical taxonomic categories?
A. species - family - genus - domain - order - phylum - class - kingdom B. domain - kingdom - phylum - class - order - family - genus - species C. species - genus - family - order - class - order - phylum - kingdom - domain D. kingdom - class - phylum - order - family - genus - species E. kingdom - class - domain - order - phylum - genus - family - species
Koch's postulates set forth a set of criteria designed to establish a causal relationship between a causative microbe and a disease
a. true b. false