Which animal group is characterised by having a backbone or vertebral column?

Which type of joint is found in the skull where bones are fixed together and allow no movement?

Which animal group lacks a backbone and includes insects worms and molluscs?

Which everyday substance when mixed with water forms a solution that conducts electricity?

Which type of animal can live both on land and in water, such as frogs and toads?

Which phenomenon explains why distant mountains sometimes appear bluish in colour?

Which cold-blooded animal group is covered in scales breathes air through lungs and lays eggs on land?

Which everyday process involves the removal of dissolved impurities from water by passing it through a bed of sand and gravel?

Which warm-blooded animal group nourishes its young with milk and typically gives birth to live young?

Which property of a magnet means it will always realign itself to point in a north-south direction if freely suspended?

Which cold-blooded vertebrate group lives entirely in water breathing through gills throughout its life?