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Biology Semester 2 > Classification > Flashcards

Classification Flashcards

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0
Q

Give the classification of man

A 
Animalia
Chordata
Mammalia
Primate
Hominidae
Homo
sapiens
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1
Q

What is classification?

A

Classification is the practise of putting organisms into groups and then giving them names.
Classification is hierarchical; meaning we start with big groups and progressively divide into smaller groups until we arrive at the single individual

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2
Q

What are the 7 main phyla that this topic looks at?

A 
Porifera
Cnidaria
Annelida
Echinodermata
Mollusca
Arthropoda
Chordata
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3
Q

What phylum are sponges in?

A

Phylum Porifera

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4
Q

What are the main features of Phylum Porifera?(sponges)

A

Very simple structure

Only groups to lack a nerves system

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5
Q

What organisms are in Phylum Cnidaria

A

Corals, sea anemone and jellyfish

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6
Q

What are the main features of Phlum Cnidaria? (Jellyfish, coral, sea anemones)

A

All are aquatic
Radially symmetrical
Hollow gut
Diploblastic ( ectoderm and endoderm only)
Many show polyp and medusa forms during life cycle
Have cnidoblasts (nematocysts) stinging cells
Sac-like body cavity (the gut or enteron)
Have a nerve net,
Most are carnivorous

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7
Q

what is in Phylum Annelida?

A

segmented worms

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8
Q

what are the main features of Phylum Annelida? (Segmented worms)

A 
have body segmentation 
solid ventral nerve chord
possess chaetae: hair like structures used for locomotion
closed circulatory system 
E.G, polychaete worms
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9
Q

what Phlum are Sea stars, sea dollars, sea cucumbers and Sea urchins in?

A

Phylum Echinodermata

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10
Q

what are the main features of Phlum Echinodermata? (Sea dollars, sea urchins)

A 
typically have radial symmetry
typically have 5-part body segmentation
possess tube feet
"spiny skin"
mouth on ventral or lower surface
sea stars and sea urchins typically have structures called pedicellariare
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11
Q

What are the three classes in Phylum mollusca?

A

cephlapoda
gastropoda
and bivalves

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12
Q

what is the feeding type of cephlapods?

A

Carnivores

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13
Q

what is the feeding type of grastropods?

A

some herbivores and some carnivores

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14
Q

what is the feeding type of bivalves?

A

filter feeders

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15
Q

what are the main features of Phylum Mollusca?

A

soft bodied animals
body divided into head, foot and visceral mass regions
many have shells secreted by the mantle
gastropod group have radula for feeding

16
Q

what adaptation do gastropods have for feeding?

A

a radula

17
Q

what are some examples of organisms in Class Gastropoda?

A 
top shells
cone shell
sea hare
slugs
abalone
limpets
chiton
18
Q

what are some examples of organisms in Class bivalve?.

A

clams
oysters
muscles
scallops

19
Q

what are some examples of organisms in Class cephalopod?

A

octapus
squid
cuttle fish

21
Q

What are the main features of Phylum Arthropoda?

A

body divided into head,thorax and abdomen regions
possess exoskeleton made of chitin
jointed legs or appendages
open circulation system

22
Q

what are some organisms in Phylum Arthropoda class Crustacean?

A 
hermit crabs
lobster
shrimp 
prawns
crabs
barnacles
23
Q

what are the main features of Phylum Chordata?

A 
Notochord
Dorsal nerve chord (hollow)
post-anal tail
pharyngeal slits or clefts
Circulatory system
most are vertebrates (exception tunicate group)
24
Q

what are two classes in the Phylum Chordata?

A

Class Osteichthyes and Class Chondrichthyes

25
Q

what class are sharks and rays in?

A

class Chondrichthyes

26
Q

What class are boney fish in?

A

Class osteichthyes

27
Q

what are the main features of class Osteichthyes?

A

skeleton made of bone
gills covered by an operculum (gill plate)
fins are membranous with boney rays

28
Q

what are the main features of class chondrichthyes?

A

skeletonmade of cartilage
mouth is in a ventral position
have separate gill openings or gill slits
fins are fleshy

Biology Semester 2 (4 decks)

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