Sponges are believed to have arisen from the choanoflagellates because they possess:a

amebocytes.
b. collar cells.
c. spongin.
d. spicules.
e. oscula.


b

Biology & Microbiology

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The simplest of the eukaryotes are the:

a. protistans b. plants c. fungi d. animals e. Archaea

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Viruses that attack bacteria are called:a

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True or False: sRNAs can only regulate expression by binding mRNA

a. TRUE b. FALSE

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