A species is often defined as the largest group of organisms where two hybrids are capable of reproducing fertile offspring, typically using sexual reproduction, although the species problem encompasses a series of difficult related questions that often come up when biologists define the word species.
What does cuticle mean in Urban Dictionary?: a cuticle is some vibrant thing between your bottom of the nail plus epidermis. Some individuals have actually cuticles that grow up pretty far onto theirâ¦
The cuticle is responsible for much of the mechanical strength of the hair fiber. A healthy cuticle is more than just a protective layer, as the cuticle also controls the water content of the fiber. Much of the shine that makes healthy hair so attractive is due to the cuticle.