There is the digestive system is used to help you digest food.
The respiratory system that lets us use and brain oxygen.
Lastly, the circulatory system which allows our bodies to have flowing blood.
Answer:
The Scientific Adam refers to the most recent common ancestor of all males, given that some scientists theorize that all currently living men share the same mutations in their Y chromosome, proving that one man fathered all of humanity.
Identifying the Scientific Adam would be very important for both science and religion, as it would provide a bridge between these two often collided fields. The Scientific Adam proves the existence of the biblical Adam.
Answer:
C. habitat isolation; temporal isolation; behavioral isolation; mechanical isolation; gamete isolation.
Explanation:
Reproductive Barriers may be of any type which includes habitat isolation; temporal isolation; behavioral isolation; mechanical isolation; gamete isolation. All these examples are categorized under prezygotic barriers.
Habitat isolation: It occurs in case of allopatric speciation, initially all the members of a species can mate with each other but later on due to geographic barriers like due to a rift, their habitat separates and they cannot mate with each other and later on they evolve as separate species.
Temporal isolation: In temporal isolation, reproductive barrier is different time/season of breeding like American toads and Fowler's toad both are closely related and have potential to mate but due to different mating season they are unable to mate with each other. American toads mate during summers while Fowler's toad mate during late summers.
Behavioral isolation: When the members of two closely related species behave and respond to different mating behavior, it is known as behavioral isolation. For example breeding calls.
Mechanical isolation: Mechanical isolation occurs because of structural or chemical barriers. For example: when the shape of pollinator does not match with that of flower then the male gametes will not be able to reach to the egg cell.
Gamete isolation: When the gametes are unable to fuse due to any reason like less mobility of sperm in the female reproductive tract.
Answer: one of your relatives or family memember having it
Explanation:
