Sympatric Speciation

Is often, a what species arises what geographic separation

Is often, a NEW species arises WITHOUT geographic separation

1. Reproductive what can occur in what. These populations stopped what leading to what

1. Reproductive ISOLATION can occur in ANIMALS. These populations stopped INTERBREEDING leading to SPECIATION

ex: North American apple maggot fly - the original population colonized hawthorn trees but about 200 years ago, some flies populated apple trees.

2. Plants what and or what and can generate reproductive what without geographical what

Plants SELF-FERTILIZE and or ASEXUALLY REPRODUCE and can generate reproductive ISOLATION without geographical BARRIERS

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