Amphibians are distinguished from earlier vertebrates by ____

a. the development of eggs capable of hatching on land
b. metamorphosis
c. the development of limbs capable of moving on land
d. the presence of scales to prevent desiccation
e. absence of gills in any stage of development


c

Biology & Microbiology

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Four of the five answers listed below are descriptive of annelids. Select the exception

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Biofilm formation by Pseudomonas bacteria on the surface of a natural loofa sponge kept in the shower is an example of which type of relationship? 

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Biology & Microbiology

All of the following are associated with nucleic acid structure EXCEPT

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Biology & Microbiology