Chapter 33 - Animal Diversity and the Evolution of Body Plans

These creatures are asymmetrical as adults

• Parazoa
• Aceoelomates
• Coelomate
• Deuterostomic

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NGSS.MS-LS4-2

Three layers, but no body cavity

• Radiata
• Bilateria
• Aceoelomates
• Deuterostomic

Parazoa

• Sponges
• Jelly fish
• Tapeworms
• Nematode 

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NGSS.MS-LS1-1

Flatworms

• Radiata
• Aceoelomates
• Pseudocoelomates

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NGSS.MS-LS4-2

Round worms

• Parazoa
• Radiata
• Aceoelomates
• Pseudocoelomates

mesoderm develops from two masses in this coeolmate group

• endoderm
• pseudocoelomate
• schizocoelous
• gastrovascular cavity

a body cavity that is fully surrounded by mesodermal tissue

• coelom
• pseudocoelom
• mesoderm
• endoderm

Has anterior and posterior ends

• Cnidaria
• Bilateria
• Parazoa
• Radiata

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NGSS.MS-LS4-2

What is homeostasis?

• Keep internal conditions stable
• Be able to live
• Be together with the same species

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NGSS.HS-LS1-3

Which of the following is true about animals?

• They are heterotrophs (feed on others)
• They are autotrophs (create their own food)
• They are both heterotrophs and autotrophs