Animals III Flashcards

1
Q

What group is the oldest known land animal?

A

Ecdysozoans, specifically Scorpions

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2
Q

When was the oldest land animal

A

437 mya Silurian

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3
Q

Ecdysis is the shedding of the _________

A

cuticle

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4
Q

Cuticles are typically reinforced with _______

A

chitin

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5
Q

T/F Nematoda are unsegmented

A

True

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6
Q

Tardigrades are sister to what two groups?

A

Ony (Velvet worms) and Arthropods

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