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Wildlife Biology > Simple Invertebrates > Flashcards

Simple Invertebrates Flashcards

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AP® Biology flashcards Biology 101 flashcards
1
Q

phylum of primitive invertebrate animals w/out true tissues or organ formation, body permeated by canals and chambers (pores)

A

Porifera

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2
Q

invertebrate animal (hydra, jellyfish, sea anemone, coral) having specialized stinging structures in the tentacles surrounding mouth

A

Cnidarian

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3
Q

phylum characterized by an elongated, cylindrical body divided into ringlike segments

A

Annelida

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4
Q

form of hydrozoan that is asexual and grows into branching colonies by budding

A

Hydroid

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5
Q

free-swimming marine coelenterate, sexually reproducing form of a hydrozoan or scyphozoan

transparent saucer-shaped body and extensible marginal tentacles with stinging cells

A

Jellyfish

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6
Q

phylum of relatively simple bilaterian, unsegmented, soft-bodied invertebrates

A

Platyhelminthes

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7
Q

parasites on animals and humans and cause disease (pinworm, roundworm, filaria, hookworm)

A

Nematoda

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8
Q

small nematoid worm that inhabits rectum of human host

A

Pinworm

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9
Q

any of ribbon-like parasitic worm of class Cestoda, possesses head w/ bothria that aid in attaching to their host

resembles tape or ribbon

A

Tapeworm

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10
Q

mollusks in class Bivalvia, shell consists of two halves hinged together (clams, oysters, scallops, and mussels)

A

Bivalves

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11
Q

animal belonging to class Gastropoda (snails, slugs, nudibranchs)

A

Gastropod

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12
Q

animals having a body cavity called a coelom

A

Coelomate

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13
Q

animal lacking a coelom

A

Acoelomate

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14
Q

symmetry around central axis (starfish)

A

Radial Symmetry

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15
Q

lack of symmetry

A

Asymmetry

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16
Q

symmetry going through something, halves

A

Bilateral Symmetry

17
Q

slender flexible limb or appendage especially around mouth of an invertebrate

A

Tentacle

18
Q

explosive cell containing giant secretory organelle, defines phylum Cnidaria (corals, sea anemones, hydrae, jellyfish)

A

Cnidocyte

19
Q

outer layer of cells or tissue of embryo in early development

A

Ectoderm

20
Q

inner layer of cells or tissue of embryo in early development

A

Endoderm

21
Q

female gonad or reproductive gland, ova and hormones that regulate female secondary sex characteristics develop

A

Ovary

22
Q

produce and store sperm, body’s main source of male hormones, such as testosterone

A

Testes

Wildlife Biology (7 decks)

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