Question

Question 5

5- Which of the following is neither a protostome nor a deuterostome?

1-Group of answer choices

2-a velvet worm

3-a box jelly fish

4-a great white shark

5-a clam

Question 6

6-You find an invertebrate deuterostome with secondary radial symmetry on the beach. Which of the following classes might it belong to?

1-Group of answer choices

2-amphibia

3-scyphozoa

4-mammalia

5-ophioroidea

Answer 1

5. 3. a box jelly fish

Jelly fihes are included in plylum cnidaria which is coming under Radiata. They have radial symmetry and diploblasic body.

6. 5. Ophioroidea

Phylum echinodermata are Invertbrate deuterostomes.The phylum echinoderms is divided into five extant classes: Asteroidea (sea stars), Ophiuroidea (brittle stars), Echinoidea (sea urchins and sand dollars), Crinoidea (sea lilies or feather stars), and Holothuroidea (sea cucumbers). Animals in the phylum Echinodermata display radial symmetry as adults, but their larval stages exhibit bilateral symmetry. This is termed secondary radial symmetry.