insects - entomology is the study of, wall - animal's a cell, scavenger - animals that eats dead organisms, respiration - lungs, gills, through skin, simple diffusion, egg - zygote fertilized, mesoderm - muscle, circulatory systems made of , ectoderm - sense organs, nerves are made of , wheel - Radial Symmetry - shaped like a, oviparous - according to reproduction animals are divided into viviparous and ..., roundworm - example of Phylum Nematoda, gills  - Class Pisces. Respiration occurs through, three - Amphibians. The heart is ... chambered, crocodile - an animal of Class Reptilia with four chambere heart, feathers - Class Aves. They are warm-blooded animals with the body being covered by, Reptilia - one of classes of Pylum Vertebrata with scales, lungs - respiration in Class of mamalia occurs in, Aves - Parrot is represenative of class, animals - Omnivore eats plants and, symbiotic - Parasites in ... relationship, water - Filter Feeders strain food from ...,

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