Biogeographic isolation : Isolation through distribution of Species in geographic space and time
so , one of the answer is The isolation of two populations of the same species
By doing this, decrease the chance of any cross breeds between species, which eventually will led to Speciation
What is the sequence for?
Answer: In cell biology, an organelle is a specialized subunit, usually within a cell, that has a specific function. The name organelle comes from the idea that these structures are parts of cells, as organs are to the body, hence organelle, the suffix -elle being a diminutive
Answer:
conditioned stimulus
Explanation:
In Pavlov’s classical conditioning experiment with dogs, he used a bell (neural stimulus) which initially did not generate salivation until after pairing it with the meat powder (unconditioned stimulus). The meat powder (unconditioned stimulus) naturally triggers salivation (unconditioned response). After the association of the bell with the meat powder, salivation as a conditioned response became triggered by the tone of the bell alone.
The tone of the bell, which was originally irrelevant, is now the conditioned stimulus that now triggers salivation (conditioned response).
For plants, it's photosynthesis.