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Bio 113 Lab > Quiz 9 > Flashcards

Quiz 9 Flashcards

1
Q

How do we classify animals

A
  1. Type of body symmetry
  2. Different tissue types
  3. Body cavity (Coelom)
  4. Patterns of embryonic development
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2
Q

Types of Symmetry

A

Asymmetrical - without symmetry
Radial- Parts radiate from center
Bilateral- mirror image

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3
Q

Tissues

A

Parazoa

-Porifera (pore bearer sponges) Eumetazoa

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4
Q

Parazoa tissue

A

no specialized tissues or organs

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5
Q

Eutmetazoa

A

more than one type of tissue and organs

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6
Q

Germ Tissue Layers developed in Embryos

A

Endoderm
Mesoderm
Ectoderm

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7
Q

Endoderm

A

(yellow) layer of germ tissue that develops in embryo
innermost layers
becomes gut, liver, lungs

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8
Q

Mesoderm

A

(blue) layer of germ tissue that develops in embryos
middle layer
becomes skeleton, heart, kidney, muscle, blood

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9
Q

Ectoderm

A

(red) layer of germ tissue that develops in embryos
outermost layer
becomes skin nervous system

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10
Q

Classification based on Germ layers

A

Diploblastic

Triploblastic

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11
Q

Diploblastic

A

two layers

endoderm and ectoderm ONLY

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12
Q

Triploblastic

A

three layers, endoderm, mesoderm and ectoderm

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13
Q

Three types of Body Cavity (Coeloms)

A

Acoelomate
Pseudocoelomate
Coelomate

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14
Q

Acoelomate

A

-no true body cavity

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15
Q

Pseudocoelomate

A

False body cavity not completely lined with mesoderm

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16
Q

Coelomate

A

body cavity completely lined with mesodermal tissue

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17
Q

Embryonic Development

A

Protostome

Deuterostome

18
Q

Protosome

A

Embryonic development

blastopore becomes the first mouth

19
Q

Deuterostome

A

Embryonic development

blastopore becomes the anus “second mouth”

20
Q

Porifera

A 
Sponges
Asymmetrical 
No tissues, only cells 
Adults are sessile 
Hermaphroditic 
skeleton may be spongin or spicules
21
Q

Sponge body types

A

Asconoid: large spongecoel is dead space and limits their size
Synoconoid: choanocutes line canals extending
Leunocoid: distributed along chambers that branch off from canals (most common)

22
Q

Cnidaria

A

Jellyfish, Hydrozoa, sea anenome

23
Q

Phylum Cnidaria

A 
Radial symmetry 
Diploblastic 
Tissues
specialized cells that sting prey for food or defense
hydrostatic skeleton 
Primitive Nervous system
24
Q

Cnidaria body types

A

Polyp (anamone)
Meducsa (jellyfish)
Two germ layers

25
Q

Platyhelminthes

A 
Flatworms, planaria, Flukes, tapeworms
Flat bodies
-bilateral symmetry 
Triploblastic 
Simple nervous system 
First example of cephalization (development of head)
26
Q

Nematoda

A 
Round worms, Vinegar eel 
Pseudocoelomates
from eating infected pork
cysts in muscle tissue 
Trichinosis
27
Q

Annelida

A

Truly segmented body cavity (septa)
Closed circulatory system
trochophore larval stage
sandworms, earthworms, and parasitic and predatory, leaches

28
Q

Mollusca

A

Chiton, snails and slugs, clams and scallops, squid, octopuses, chambered nautilus

29
Q

Arthropoda

A

Spiders, Milipedes and centipedes, insects, crabs, ticks
2 body regions
-Cephalothorax and abdomen

30
Q

Protostomes

A

mollusks
annelids
arthropods
Spiral and determinate

31
Q

Deuterostomes

A

echinoderms
chordates
Radial and indeterminate

32
Q

Echinodermata

A

Sea stars and relatives

33
Q

Sea Stars

A 
Class Asteroidea 
Spiny protective skins 
pental radial symmetry 
water vascular system 
tube feet 
skeleton of calcite plates
34
Q

SeaLily Fossil in the Lab counter

A

in lab

35
Q

Notochord

A

flexible longitude rod of cartilage

Located between the gut and the dorsal nerve cord

36
Q

Determinate

A

Protosome embryological cell division

daughter cells are fated to produce specific body parts

37
Q

Indeterminate

A

Deuterostome

stem cells are produced whose fates are not fixed at the time of division

38
Q

blastopore

A

opening to the developing gut cavity

39
Q

Deuterostome blastopore

A

helps form the anus

the protostome blastopore becomes the mouth

40
Q

mammals

A

mammary glands
hair
muscle diaphragm

41
Q

Amphibia

A 
Frogs, toads, and salamanders 
incompletely terrestrial 
gas exhange through their moist skin 
born alive
vertebrate
red blood cells

Bio 113 Lab (9 decks)

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