HEYA!!!!
The answer to your question is
Two Indian Cow Breeds are ;
Hallikar
Hariana Cattle
Foreign Breeds:-
Brown Swiss
Hope it helps you.
:)
The answer is diversification. The populace segment of an animal varieties' specialty relates to the conveyance of people crosswise over situations inside an area. As developmental clades of species expand, they apparently fill specialty space, and, thus, the rate of increment in species numbers moderates.
Answer:
A cell that results from the fusion of sperm and ovum is called a zygote. The process of fusion of sperm and ovum is called fertilization.
Im not 100% sure but the best answer I can give is Prokaryotes because they came to be around the time oxygen did as well.
The mechanisms of reproductive isolation prevent the reproduction of two individuals from different species. The prezygotic mechanisms disrupt the stages of reproduction before the forming of the zygote or prevent the mating at the start, and the postzygotic mechanisms affect the stages of reproduction after the forming of the zygote.
So, the first and the third example (the urchins and the grasshoppers) show the prezygotic mechanism, as the two individuals are not able to mate or form a zygote.
The second and the fourth example ( zonkey and the death of a zygote) show the working of the postzygotic mechanisms, as the zygote is formed, but it seems to be inviable, and the zonkeys are sterile, preventing the individual to reproduce.
