Animal Characteristics Flashcards

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0
Q

Bilateria

A
  • Bilateral symmetry

* Triploblastic (3 tissue layers)

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1
Q

Radiata

A
  • Radial symmetry

* Diploblastic (2 tissues)

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2
Q

Acoelomates

A

• No body cavity

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3
Q

Pseudocoelomates

A

• False coelom
• Not completely lined by
mesoderm derived tissue

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4
Q

Coelomates

A
  • True coelom
  • Room for organs in body cavity
  • Lined with mesoderm tissue
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5
Q

Protostomes

A
• Coelomates
• 1st embryo opening (blastopore) 
   becomes mouth
• Bilateral symmetry
• Triploblastic (3 germ layers)
   – Mesoderm gives rise to 
     parenchyma, rep organs, & muscle
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6
Q

Deuterostomes

A

• 1st embryo (blastopore) opening

becomes anus

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