How are organisms adapted to live underwater?

Science

How long can elephant seals hold their breath for?

Which of these is NOT an adaptation that helps marine animals to breathe?

They are dark coloured on the top and light coloured on the bottom

They are light coloured on the top and dark coloured on the bottom

Which statement is true about many marine animals?

A characteristic that helps an organism to survive

Why are nocturnal animals often dark coloured?

Less chance of being seen by prey or predators

Which of these is not a benefit of being nocturnal?

Does eye A or eye B belong to a nocturnal animal?

Does eye C or eye D belong to a nocturnal animal?