Question

sponges are ____, meaning they cannot move. options: sessile, locomotive, bipedal, tetrapodal

Explanation:

To solve this, we analyze the meaning of each term:

• Sessile: Organisms that are permanently attached and cannot move from their place.
• Locomotive: Relates to movement (e.g., locomotion), so this is the opposite of what we need.
• Bipedal: Organisms that move on two legs (e.g., humans), sponges don't have legs and can't move, so this is incorrect.
• Tetrapodal: Organisms with four limbs (e.g., most terrestrial vertebrates), sponges don't have limbs and can't move, so this is incorrect.

Since sponges are permanently attached and cannot move, the correct term is "Sessile".

Answer:

A. Sessile