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What percentage of described species are arthropods?
When did arthropods begin?
Over 500 million years ago
How many insects are alive on Earth at any one time?
A billion billion
How many ants are alive on Earth at any one time?
A million billion
What is one of the most abundant animals in the ocean?
A copepod, their world-wide mass easily exceeds those of all the whales combined
Name some examples of crustaceans.
Crabs, pillbugs, and barnacles
Questions from Bio 2484 Reading