How many can you check? I personally think its all 4 but i could be wrong :)
Slender stalk and the filament
8-11 is -3. When subtracting a bigger number from a smaller number, the answer will always be negative.
It means that the farmers have been selecting the phenotypic traits by choosing which two animals or plant males will make will make a useful offspring (another word for hybrid) in which it can survive through the environment.
Hope this helps! :)
Cellular homeostasis involves maintaining a balance of several factors that make a cell healthy