Answer:
Foot of a molluscs is used for locomotion and anchorage, and varies in shape and function, depending on the type of mollusk under study.
Speciation: <span>the formation of new and distinct species in the course of evolution
Speciation has occurred when the two species can no longer procreate with each other.</span>
The resistant insects are able to survive to reproduce and create a population that is also resistant
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