Question

select all that apply
select all the characteristics that distinguish sponges from other animals.
asymmetrical body in some individuals
no true tissues
direct development
exoskeleton

Explanation:

• Sponges are among the simplest animals. Many sponges have an asymmetrical body plan, while most other animals have more defined symmetry (like bilateral or radial).
• Sponges lack true tissues. True tissues are groups of cells that have a common structure and function and are organized into a specific pattern. Sponges have cell - types, but not the coordinated tissues seen in higher animals.
• Direct development (where the young resemble the adult form without a distinct larval stage) is not unique to sponges. Many other animals also have direct development.
• An exoskeleton is a hard outer covering. Sponges do not have an exoskeleton. Some invertebrates like arthropods have exoskeletons.

Answer:

asymmetrical body in some individuals, no true tissues