A common characteristic of Choanoflagellida is

A. a single, unique mitochondria.
B. silica covering.
C. funnel-shaped, contractile collar.
D. space beneath the plasma membrane.
E. presence of a plasmodium.


Answer: C

Biology & Microbiology

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Differentiation in complex multicellular organisms occurs when:

A. All of the answer options are correct. B. different combinations of genes are activated and repressed in different cells. C. cells in different environments are exposed to different types of signals. D. different combinations of proteins are expressed in different cells. E. cells acquire different fates.

Biology & Microbiology

What other information is related to the question? Which information is most useful?

What will be an ideal response?

Biology & Microbiology

Enzymes required for DNA replication are synthesized during the G1 phase

__________________ Indicate whether the statement is true or false.

Biology & Microbiology

All of the following are true of emulsification, except:

A. It helps lipase with digestion B. It prevents large droplets of lipids from reforming C. It helps trypsin with digestion D. It is the process of breaking up large droplets of lipids into smaller droplets E. It uses bile salts

Biology & Microbiology