Answer:
If the inter breeding absent between the individual of different species due to some barrier or mechanism calles reproductive isolation.
Mutualism is the symbiosis when both are benefited !!
Bacteria perform important functions in the soil, decomposing organic residues from enzymes released into the soil. Each functional bacteria group plays a role in recycling soil nutrients.
A. Nutrients and other materials pass through the cell membrane through the process of diffusion. This allows the cell to perform all the activities it requires for daily maintenance and living. The concentration gradient allows the cell to regulate just how much of a certain material passes through it.
