Question

Question 2 1.25 / 10 points Matching __2_ Deuterostomes that lay amniote eggs on dry land Deuterostomes characterized by a cartilaginous endoskeleton Protostomes whose defining characteristic is the mantle; many are filter feeders Segmented protostomes which exchange gases with the help of spiracles and tracheae Animals with alternating medusa and polyp stages in their life cycle Many of these are parasitic and must absorb nutrients and 2 _ exchange gases directly through the skin, having lost their ancestral digestive organs Deuterostomes with radial symmetry and a water vascular system 4. Animals with no distinct cell layers and no true organs 1. Poriferans 2. Reptiles 3. Mollusks 4. Echinoderms 5. Cnidarians 6. Flatworms 7. Chondrichthyans 8. Insects

Answer 1

1. Poriferans

Animals with no distinct cell layers and no true organs

2. Reptiles

Deuterostomes that lay amniote eggs on dry land

3. Mollusks

Protostomes whose defining characteristics is the mantle; many are filter feeders

4. Echinoderms

Deuterostomes with radial symmetry and a water vascular system

5. Cnidarians

Animals with alternating medusa and polyp stages in their life cycle

6. Flatworms

Many of these are parasitic and must absorb nutrients and exchange gases directly through the skin, having lost their ancestral digestive organs

7. Chondrichthyans

Deuterostomes characterized by a cartilaginous endoskeleton

8. Insect

Segmented protostomes which exchange gases with the help of spricales and tracheae