Principles of Animal Biology

abdominal Amphibia animals Annelids appendages arch arteries Arthropods auricle BB CC birds blood body bones called capillary cavity cells characteristics characters chemical cilia Class colour compound eyes crossed Crustacea dorsal Drosophila effector embryo eyes female fertilization fibres fishes fossil frog gametes ganglia ganglion Gastropoda Genera genes gill gland gonads heart hybrids individuals insects internal intestine land Vertebrates layer limbs Linnæus liver living lung fishes lungs mammals mated maxilla melanophores Mendel's microscopic motor bicycle mouth muscle muscular mutant nerve nervous system notochord nucleus offspring organs ovary Oviparous oxygen pair of chromosomes Paramecium phylum pigment plants posterior produced proteins receptor region reptiles response result segments sexual shell Shell-fold side single skin skull species sperm spinal cord stimulation striped muscle structure surface tadpole tissues trunk Unity of Type veins ventral ventricle Vertebrates vessels vestigial white-eyed wild type yellow yolk yolk plug