Below is a chart I'm trying to fill out for Invertebrates. I wanted to know if...

Below is a chart I'm trying to fill out for Invertebrates. I wanted to know if my answers are correct, and if you can help me fill in the sections that I didn't understand (the blank parts). Thank you!

Characteristic	Cnidaria	Nematoda	Platyhelminthes	Arthropoda	Annelida	Porifera	Echinodermata
Protostome/mouth	Eumatozoa	Protostome	Protostome	Protostome	Protostome	Parazoa	Deuterostome
Radial symmetry	Radial	bilateral	bilateral	bilateral	bilateral	No symmetry (only sponges)	radially symmetrical
Monoecious	Budding	Dioecious	Monoecious	Dioecious	Both Monoecious and Dioecious	Monoecious	Dioecious
Cuticle/exoskeleton	hydroskeleton	hydrostatic	hydroskeleton	exoskeleton	hydroskeleton	Endoskeleton of spicules	dermal endoskeleton
Filter feeder						Yes
Tentacles	Yes
Compound eyes				compound eyes
Metamerism	unsegmented	unsegmented	unsegmented	segmented	segmented	unsegmented	unsegmented
Closed circulatory sytem	Neither open or closed	Neither open or closed	Neither open or closed	Open	Closed	Closed	Open
Habitat (marine)				Marine animals

Expert Solution

Characteristic	Cnidaria	Nematoda	Platyhelminthes	Arthropoda	Annelida	Porifera
Protostome/mouth	Protostome	Protostome	Protostome	Protostomes	Protostomes	None
Radial symmetry	Radial	Bilateral	Bilateral	Bilateral	Bilateral	Asymmetrical
Monoecious	Both Monoecious and Dioecious	Both Monoecious and Dioecious	Monoecious	Dioecious	Both Monoecious and Dioecious	Monoecious
Cuticle/exoskeleton	Absent	Present	Absent	Exoskeleton of chitin	Present	Present
Filter feeder	Present	Present	Present	Present	Present	Present
Tentacles	Present	Present	Present	Present	Present	Present
Compound eyes	Simple eyes	Simple eyes	Simple eyes	Compound eyes	Compound eyes	Absent
Metamerism	Present	Present	Absent	Present	Present	Absent
Closed circulatory system	Absent	Absent	Absent	Open	Closed	Absent
Habitat (marine)	Yes	Yes	Yes	Yes	Yes	Yes

Hopefully all these are correct. But do comment for any queries.

gladiator answered 2 years ago

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