1.22 Read the text again. Write the correct vertebrate group(s) for each statement. 1 They can usually fly. birds Their young are born from eggs. 2 3 4 5 They haven't got arms or legs. Their young form inside their bodies. They haven't got lungs. 6 They've got skin, fur or feathers. 7 They don't live on land. 8 They can live in water and on land.