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Biology > Exam 4 > Flashcards

Exam 4 Flashcards

1
Q

4 groups of Cnidaria

A

Hydrozoa
Scyphozoa
Cubozoa
Anthozoa

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2
Q

3 classes of Platyhelminthes

A

Turbellaria
Trematoda
Cestoda

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3
Q

Two classes of Radiata

A

Cnidaria

Cnetophora

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4
Q

Basic anatomical/morphological features of molluscs

A

Visceral mass
Mantle
Radula
Foot

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5
Q

4 classes of Molluscs

A

Polypacophora
Gastropoda
Bivalvia
Cephalopoda

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6
Q

3 classes of Annelida

A

Polychaeta
Oligochaeta
Hirudinea

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7
Q

4 unifying features of Arthropods

A

Segmented bodies
Jointed legs
Exoskeleton
Open circulatory system/ sensory organs

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8
Q

4 main groups of Arthropods

A

Chelicerata
Myriapoda
Hexapoda
Crustacea

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9
Q

General features characterizing Echinodermata

A

Radial symmetry
Endoskeleton
Water-circulatory system

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10
Q

Three main groups of Chordates

A

Urochordata
Cephalochordata
Vertebrates (craniata)

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11
Q

Two anterior appendages on spiders and scorpions

A

Pedipalps

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12
Q

Two features insects have that contributed to their evolutionary success

A

Flight/wings

“Niche partitioning”

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13
Q

Taxa that cause human illness

A

Cnidarians- produce toxins/poisons
Trematoda- Schistomiosis and Swimmers Itch
Cestoda- tapeworms

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14
Q

Choanoflagellates

A

Nearest non-animal taxon

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15
Q

Ediacarian Fauna

A

Late protozoic 635 million years ago

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16
Q

Morphology

A

Body symmetry recognized as Bilateral or Radial

17
Q

Germ Tissue

A

Unspecialized tissues at gastrulation

18
Q

Diploblastsic

A

Ectoderm and endoderm are present in gastrula and separated by space

19
Q

Triploblastic

A

Blastocoel replaced my mesodermal tissue

20
Q

Coelomate

A

Body cavity lines by tissues derived from mesoderm

21
Q

Blastophore

A

Opening of archenteron develops anus in deuterostomes and the mouth in protostomes

22
Q

Blastula

A

Hollow ball of cells that marks the end of cleavage stage during embryonic development

23
Q

Gastrula

A

Embryonic stage encompassing the formation of three layers: ectoderm, mesoderm, endoderm

24
Q

Cleavage

A

Pinching of plasma membrane

25
Q

Gastrulation

A

Series of cell and tissue movements in which the blastula stage folds inward, producing a three layered embryo, gastrula

26
Q

Lophophore

A

Ciliates feeding structure

27
Q

Polyp

A

Cnidarian body orientation; sessile

28
Q

Medusa

A

Cnidarian body orientation: motile

29
Q

Hirudin

A

Anticoagulant in salivary secretions in leeches

Biology (7 decks)

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