AP BIOLOGY

CLASSIFICATION

NINE COMMON ANIMAL PHYLA

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following do NOT go through cephalization (no head)? Select all that apply.
A
chordate
B
Annelid
C
Arthropoda
D
Porifera
Explanation: 

Detailed explanation-1: -Cnidarians such as jellyfish don’t have any cephalization; their nerves and sensory organs are distributed all around their bodies. Jellyfish don’t have brains; they also don’t have a front or a back.

Detailed explanation-2: -Terms in this set (15) Sponges. No cephalization. No symmetry.

Detailed explanation-3: -Animals That Lack Cephalization Examples include echinoderms (starfish, sea urchins, sea cucumbers) and cnidarians (corals, anemones, jellyfish).

Detailed explanation-4: -Are Sponges Cephalized? Sponges lack symmetry; they are neither radially nor bilaterally symmetric. Cephalization occurs only in animals that are bilaterally symmetrical. The cavity in the body.

There is 1 question to complete.