Answer:
true, the alternative would be postzygotic barriers.
Explanation:
A model organisms is a species that has been widely studied, usually because it is easy to maintain and breed in a laboratory setting and has particular experimental advantages. model organisms are non-human species that are used in the laboratory to help scientists understand biological processes.
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First part is explaining second part is explaining the uses)
I am pretty sure its called the "Biological Soup theory"... I hope I helped!
Answer:
40 miles/hour
Explanation:
(80 miles) / (2 hours)= 40 miles/ hour
size hence streams are little and rivers are bigger than streams because a stream connects between two or more rivers
mark brainliest please :)
