Chapter 27 Flashcards by Zak Miko | Brainscape

Q

What is the most species rich animal group?

A

Ecdysozoan Protostomes

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Q

What is the tough coat that cover ecdyzoans ?

A

Cuticle

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Q

What is the process of shedding/molting called?

- Ecdysozoans

A

Ecdysis

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Q

Ecdysozoans - Two largest phyla?

A

Nematodes and anthropods

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Q

Habitats of nematodes?

A

Aquatic habitats, soil, moist tissues of plants

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Q

How do nematodes reproduce?

A

Reproduce through internal fertilization

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Q

Phylum Onychophora - habitat?

A

Terrestrial moist temperate and tropical habitats in the southern hemisphere

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Q

Whats special about the anthropod body?

Timeline?

A

Segmented body
hard exoskeleton
jointed appendages
535-525 mya (cambrian explosion)

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Q

What is the anthropod circulatory system called?

A

Hemolymph

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Q

Chelicerforms - What are the appendages called ?

A

Chelicerae

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Q

what are most modern Cheliceforms called?

A

Arachnids

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Q

Where do isopods live?

A

terrestrial, freshwater and marine

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Q

what are decapods?

A

The relatively large crustaceans

- Lobsters, crabs, crayfish, shrimp

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