Question

Sponges represent one of the simplest animal body plans. Their bodies lack true tissues and organs. Which feature of sponge cells supports its classification under the animal kingdom? 

Options

• Absence of mitochondria

• Ability to photosynthesise

• Presence of a cell membrane

• Presence of a cell wall

Answer 1

Presence of a cell membrane

Explanation:

Presence of a cell membrane. Animal cells, including sponge cells, have a cell membrane and no cell wall. Sponges do not photosynthesise and their cells contain mitochondria.