The collars on the cells of choanoflagellates have the function of:

A. protecting the flagellum
B. filtering bacterial food from the water
C. directing currents away from the flagellum
D. storing waste materials of the cell
E. attaching to the substrate


B. filtering bacterial food from the water

Biology & Microbiology

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What is the proper sequence in the flow of air in mammals?

a. nasal cavities, larynx, pharynx, bronchi, trachea b. nasal cavities, pharynx, bronchi, larynx, trachea c. nasal cavities, pharynx, larynx, trachea, bronchi d. nasal cavities, larynx, pharynx, trachea, bronchi e. nasal cavities, bronchi, larynx, trachea, pharynx

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A cell placed in a(n) ____________________ solution will swell

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

Biology & Microbiology

What structure is found in bone lacunae?

a. periosteum b. growth plate c. blood vessels d. matrix e. osteocytes

Biology & Microbiology

A flood wiping out a population would be an example of

A) exponential growth. B) survivorship curve. C) demographic stochasticity. D) environmental stochasticity.

Biology & Microbiology