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The characteristics of the species being talked about here are:
1. Allopatric speciation
2. Behaviourally isolated
The given excerpt talks about a particular species of Salamander in California. It talks about how different parts of the species moved to the different parts of the world. It also tells us how mating was incompatible after this movement.
Allopatric speciation takes place when organisms of the same species are separated from each other or "isolated" geographically which often prevents them from breeding.
Therefore, The characteristics of the species being talked about here are:
- Allopatric speciation
- Behaviourally isolated
Learn more about Salamanders on brainly.com/question/9609763
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Would be the expression. To solve, divide 10 by 2 to get 5 and 50 by 5 to get 10. Subtract 5 - 10 to get -5.
