A distinctive type of larva shared by several phyla of invertebrates and considered to be important in phylogeny is the:

A. trochophore
B. paedomorph
C. gastrula
D. metamere
E. tadpole


A. trochophore

Biology & Microbiology

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Animals are net

A. O2 consumers and CO2 producers. B. O2 and CO2 producers. C. O2 and CO2 consumers. D. O2 producers and CO2 consumers.

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You're treating a patient who experienced a fracture to her appendicular skeleton. Which bone would need to be treated?

A) skull B) vertebral column C) sternum D) tibia

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Animals tend to feed on prey that maximize their net energy intake. This is called the ________ theory.

A. maximal consumption B. optimization C. optimal foraging D. competitive exclusion

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What is the name of the macromolecule that makes up the majority of the cell membrane?

A. nucleotide B. lipid C. carbohydrate D. protein

Biology & Microbiology