ESPM42 Natural History of Insects Assignment

Question 1:How many species exist on Earth right now?

a. About 1 million. There are more names than species due to
errors.
b. 3-4 Million
c. 5-10 Million
d. Much more than 10 Million, maybe up to 100 million.

Question 2 :Why are there so many morespecies of insects than species in any othergroup?

Question 3:?Eliminate /identify biasWhy are there so many insect species?

? Bias? Perhaps insects are not the most diverse form oflife
?Very poor sampling and study of other groups, e.g.,fungi and nematodes.
?Humans know more insects because there are easy tosee (many dont require a powerful microscope).
?Insects are structurally complex, and species areeasier to recognize than more cryptic organisms.

Question 4What properties of insects have caused themto speciate more and/or go extinct less?

Question 5:Powered flight.How many times has it evolved?

1.Birds
2.Bats
3.Pterosaurs
4.Insects