absence of mitochondria – Discussion Forum

Forgot Password

Lost your password? Please enter your email address. You will receive a link and will create a new password via email.

You must login to ask question.

Search

Ask A Question

Piyush365

Asked: October 15, 2026In: Class 9 Science

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? (i) Absence of mitochondria (ii) Ability to photosynthesise (iii) Presence of a cell membrane (iv) Presence of a cell wall

The correct option is (iii) Presence of a cell membrane. Animal cells are eukaryotic, heterotrophic and characteristically bounded by a flexible cell membrane while completely lacking a rigid cellulose cell wall. CBSE Class 9 Science Chapter 12 Patterns in Life Diversity ...