"Avantor"

Fish Scales that do not Overlap

Scale Type of Fish

Common Bony Fish Scale

Observe Scale Development

Site of Gas Exchange

Illustrates Scale Development

Investigate Characteristics of Reptile Blood

Blood is Composed of Only Plasma and White Blood Cells

Illustrates Avian Lung Structure

Intestinal Parasite

Parasitic Protozoan

Parasitic Protozoan

Intestinal Parasite

Non-pathogenic Amoeba.

Non-parasitic Gut Microflora

Infectious human parasite.