Observation designed to minimize the effects of variables other than the independent variable.
Answer:
The Monterey pine and the Bishop's pine inhabit some of the same areas of central California. The Monterey pine releases pollen in February, while the Bishop's pine does so in April. This is an example of <u>temporal</u> isolation.
Explanation:
Temporal isolation is a form of reproductive isolation in which two or more species reproduce at two separate times.
<u>For example:</u> Northern america leapord frog mates in April and North America Bullfrog mates in july.
As in the given scenario, reproductive isolation is occuring in which two species (Monterey pine and Bishop's pine) are reproducing (producing pollens) at two separate times(February and April). Hence it is an example of temporal isolation.
The reason both of these are valid scientific hypotheses is because A) scientists with different educational backgrounds may put forth different hypotheses to explain the same data.
This approach in science is vital in making progress and has helped to explain many phenomena in the past. When scientists explain data using different approaches, they come to a more comprehensive conclusion.
The answer is B. Peer-reviewed journals.
Results that are peer-reviewed means that they have been checked by scientists who are also experts in the same fields. And that means that the results are reliable.