Students were given various animal pictures. They were told to work in pairs, observe the animal pictures, and list some characteristics they could use to classify the animals into groups such as vertebrates and invertebrates. What characteristics do all animals have in common?

Responses
A ability to move and eat, and are single-celledability to move and eat, and are single-celled
B ability to move and eat, and are multi-cellularability to move and eat, and are multi-cellular
C ability to move and fly, and are multi-cellularability to move and fly, and are multi-cellular
D ability to stand on four legs and eat, and are multi-cellular

1 answer

The correct response would be B: ability to move and eat, and are multi-cellular.

All animals share the characteristics of being multi-cellular organisms and having the ability to move (at least at some stage of their life cycle) and eat (they require energy and nutrients). Option A incorrectly states "single-celled," which does not apply to animals. Option C mentions the ability to fly, which is not a characteristic of all animals, and option D specifies standing on four legs, which is also not applicable to all animal species.