Brendan made a chart to categorize the characteristics of animals.

Question

An empty 2-column table titled Characteristics of Animals. Column 1 is labeled Always. Column 2 is labeled Sometimes.

Which phrase should be written in the column titled "Sometimes”?

1.Are multicellular
2.Have membrane-bound organelles
3.Produce their own food
4.Display an asymmetrical body plan

Answer 1

In the column titled "Sometimes," the phrase that should be written is:

4. Display an asymmetrical body plan

This is because not all animals exhibit asymmetry; many have symmetrical body plans (e.g., bilateral or radial symmetry), while some animals (like certain sponges) may be asymmetrical. The other options are characteristics that are generally true for all animals (multicellularity and the presence of membrane-bound organelles are universal for all animals, and producing their own food is not applicable as animals are heterotrophs).