Question

sponge knowledge check
sponges live attached to one spot as adults making them ____________ animals.
stuborn
motile
mobile
sessile

Explanation:

• Stuborn: This is not a biological term related to the described characteristic.
• Motile: Refers to the ability to move, which is the opposite of what is described (attached to one spot).
• Mobile: Also implies the ability to move, contrary to the given situation.
• Sessile: Means permanently attached to a substrate, which matches the description of sponges as adults.

Answer:

sessile