An organism that requires additional nutritional substances for growth due to a genetic mutation.

An arteriovenous shunt; a passage or device that diverts blood from an artery to a vein.

A microcontinent in the Paleozoic era, significant in historical geology and plate tectonics.

The class of vertebrates comprising all birds.

The number of atoms or molecules in one mole of a substance, approximately 6.022 × 10^23.

A relationship between an uncle or aunt and their nieces or nephews.

A slender bristle-like appendage found on the florets of grasses.

Relating to or situated around the axis of an object, such as the body or a plant stem.

A structure found in spirochetes, composed of flagella wrapped around the cell body within a sheath.

The part of the skeleton that consists of the skull, vertebral column, and rib cage.