A group of organisms that closely resemble each other.

A group of organisms that closely resemble each other is referred to as a species. A species is defined as a group of individuals that share similar physical characteristics and are capable of interbreeding to produce fertile offspring. These individuals often have similar genetic makeup and exhibit comparable behaviors and traits. However, it is important to note that not all organisms that resemble each other are necessarily of the same species, as convergent evolution can lead to similarities in appearance between unrelated organisms.