Members of the Ecdysozoa (select all that apply)

A. secrete a cuticle made of protein.
B. secrete a cuticle made of calcium
carbonate.
C. molt during growth.
D. have trochophore larvae.
E. have lophophores.


A,C

Biology & Microbiology

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Photosynthesis is to the chloroplast as ________ is to the mitochondrion.

Fill in the blank(s) with the appropriate word(s).

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If flagellar rotation of Escherichia coli cells is ________, then CheA is ________. 

A. clockwise; unphosphorylated B. clockwise; autophosphorylated C. counterclockwise; unphosphorylated D. counterclockwise; autophosphorylated

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You are planning an experiment to find out whether the rate at which water freezes depends on the shape of the container. What is the independent variable?

A.) shape of the container B.) rate at which water freezes C.) amount of water

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Spores known as akinetes are reproductive structures of

A) members of the Bacillus genus. B) members of the genus Mycoplasma. C) members of the proteobacteria. D) members of the Archaea. E) members of the cyanobacteria.

Biology & Microbiology