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 insect cuticle is essentially chitin, a polysaccharide. It combines with proteins (esspecially in the endocuticle) into long, flexible chains. For rigidity, the cuticle is modified by sclerotization (also called hardening or tanning).