Simplified cell structure

The major architectural parts of classical Greek temples across the Doric, Ionic, and Corinthian orders.

Major body regions and external structures of a grasshopper in lateral view.

The primary lobes, gyri, and anatomical dividing sulci of the human cerebral cortex.

The cavities, pharyngeal subdivisions, and cartilaginous structures of the human upper respiratory tract in midsagittal cross-section.

Topographic surface regions of the canine thoracic limb from the scapular area down to the digits.

Thirteen major physical landmarks, mountain systems, lowlands, and waterways across the contiguous United States.

Surface anatomy regions of the back, neck base, shoulders, and gluteal area in posterior view.

The optical structures, chambers, and photoreceptors that transmit and focus light through the human eye.

Major landforms, mountain ranges, islands, and geographic features across the African continent.