Air spaces within the ethmoid bone. A small bone in the skull that contributes to the inner orbital wall and also forms a small portion of the floor of the braincase under the frontal bone. A subset of cultural anthropology concerned with the comparative study of contemporary cultures, with a view to deriving general principles about human society. Chromatin that is condensed during division but becomes uncoiled during interphase. Eukaryotes are organisms that have cells in which the genetic material is located in a membrane-bound nucleus.
Eukaryotes can be unicellular or multicellular.
The condition in which an organism or cell has one complete set of chromosomes, or an exact multiple of complete sets. Reproductive isolation is implied by this definition, but not explicit in it. The name given for a character that evolved to fulfill a different function than the one it currently serves. The principle method of data acquisition in archaeology, involving the systematic uncovering of archaeological remains through the removal of the deposits of soil and the other material covering them and accompanying them. The part of an mRNA molecule that specifies the amino acid sequence of a polypeptide during translation.