This biology question covers important biological concepts and processes. The step-by-step explanation below helps you understand the underlying mechanisms and reasoning.
ScanSolve AI Answer
Step 1: Vertebrates are animals which have a vertebral column. Step 2: Features of vertebrates: An internal skeleton (endoskeleton) made of bone or cartilage. A closed circulatory system consisting of blood vessels. A well-developed nervous system. Kidneys (excretory organs). Step 3: Vertebrates are divided into five main classes: fish, amphibians, reptiles, birds, and mammals. Step 4: Table 2 - Classes of vertebrates (fish, amphibians, reptiles): |l|p6cm|l| Class & Main features & Example \\ Fish & Bony fish have smooth, wet skin. Fins are used for balancing and locomotion. & Fish \\ Amphibians & Skin moist or with mucus. Four limbs, first land animals. External fertilization. & Frog \\ Reptiles & Dry skin with scales. Internal fertilization. Four limbs. & Lizard \\ The table classifies selected vertebrate classes with their key features and examples.