Select the correct answer.
Coiling of shells can vary for snails. Snails that coll to the left cannot mate with snails that coll to the right. This difference leads to reproductive
Isolation. What kind of reproductive isolation does this example indicate?
A
mechanical isolation
B.
postzygotic isolation
C.
gametic isolation
D. behavioral isolation

The correction option is A.

Reproductive isolation is divided into two major classes, which are prezygotic and postzygotic isolation. Prezygotic isolation refers to the barriers that are present before the egg can be fertilized while postzygotic isolation refers to those barriers that are present after the egg has been fertilized. Mechanical isolation is a type of prezygotic isolation. Mechanical isolation is a type of reproductive barrier which exist because the male and the female genitalia have different sizes, shapes and locations. The snails that coil to the left and those that coil to the right have the locations of their genitalia in different places.

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this is a good question! i'll do some research and come back when i have the answer!

above statement is not a true statement about the open ocean because the open ocean has low levels of nutrients. most of the photosynthetic activity on earth occurs in the open ocean within the photic zone. organisms in the deep ocean are exposed to frigid temperatures and total darkness but it does not begin at the low-tide mark.