(also, compartment model) ecosystem model that consists of flow charts that show the interactions of different compartments of the living and nonliving components of the ecosystem

section of a scientific paper that summarizes the importance of the experimental findings

behavior that becomes associated with a specific stimulus through conditioning

oval-shaped end of one bone fitting into a similarly oval-shaped hollow of another bone

weakly photosensitive, chromatic, cone-shaped neuron in the fovea of the retina that detects bright light and is used in daytime color vision

dominant phylum of gymnosperms with the greatest variety of trees

shell shape coiled around a horizontal axis

process by which prokaryotes move DNA from one individual to another using a pilus

type of tissue made of cells, ground substance matrix, and fibers

DNA sequence that is used by many species to perform the same or similar functions

individuals that are members of the same species

larger sequence of DNA assembled from overlapping shorter sequences

inheritance pattern in which a character shows a range of trait values with small gradations rather than large gaps between them

feather that creates an aerodynamic surface for efficient flight

(also, birth control) various means used to prevent pregnancy