M1. U4. RF. Flashcards

Biodiversity of animals

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1
Q

The group of animals of the kingdom animalia without a vertebral column

A

Invertebrates

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2
Q

the group of animals of the Kingdom animalia with a vertebral column

A

vertebrates

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3
Q

the characteristics of an animal that shows that it can be cut in one or more planes to obtain to mirror images

A

symmetry

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4
Q

the characteristic of an animal that shows It cannot be cut in any plane to obtain to mirror images

A

asymmetrical

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5
Q

the type of symmetry present in an animal that can be cut in more than one vertical plane through its Centre to obtain to mirror images

A

radial symmetry

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6
Q

the type of symmetry present in an animal that can only be cut in one vertical plane through its Centre to obtain to mirror images

A

bilateral symmetry

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7
Q

the concentration of nerve cells at the anterior part of the body

A

cephalisation

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8
Q

the outer germ layer in a developing animal embryo

A

ectoderm

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9
Q

the inner germ layer in a developing animal embryo

A

endoderm

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10
Q

the germ layer between the ecto and endoderm in a developing animal embryo

A

mesoderm

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11
Q

the characteristic of animals which indicates that the embryo has two germ layers

A

Diploblastic

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12
Q

the non-cellular jelly layer that separates the endo and ectoderm

A

mesoglea

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13
Q

the characteristic of animals which indicates that the embryo has three germ layers

A

triploblastic

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14
Q

an internal fluid filled cavity in the mesoderm of triploblastic animals

A

Coelum

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15
Q

triploblastic animals with no coelum in the mesoderm

A

acoelomate

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16
Q

triploblastic animals which have a coelum but it is not only surrounded by mesoderm tissue

A

Pseudo coelomates

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17
Q

triploblastic with a true coelum in the mesoderm

A

Coelomates

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18
Q

the intake of food

A

ingestion

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19
Q

the removal of undigested remains

A

Egestion

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20
Q

the type of digestive process which occurs when new food can only be taken in Once all food already ingested has been digested and the undigested remains are egested

A

discontinuous

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21
Q

the type of digestive tract occurring in coelomate animals that have a mouth and an anus

A

Through gut

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22
Q

the type of digestive process that can continue during ingestion and digestion

A

continuous

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23
Q

the phylum in the animal kingdom which includes sponges

A

porifera

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24
Q

the level of organisation in the phylum porifera when no tissue layers are present

A

cellular level of organisation

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25
Q

the sedentary Lifestyle of sponges where they are attached to a substrate

A

Sessile

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26
Q

the large opening on the top of a sponge with a vase shape

A

osculum

27
Q

the large Central cavity in the Sponge body

A

spongocoel

28
Q

specialised cells which line the spongocoel and play a role in filter breeding

A

Collar cells

29
Q

the protein fibres that together with the spicules occur between the endo and Exo term of a sponge

A

Spongin

30
Q

the phylum in the animal kingdom which includes jellyfish and bluebottles

A

Cnidaria

31
Q

the central cavity with a mouth opening to the outside as found in cnidaria

A

Coelenteron

32
Q

the cylindrical sessile body form with a basal disc found in Cnidaria

A

Polyp

33
Q

the flattened umbrella shape free swimming body form with tentacles on the edges and a mouth on the underside as found in cnidaria

A

Medusa

34
Q

specialised cells on the tentacles of cnidaria adapted to catch paralyze and grasp prey

A

stinging cells

35
Q

the invaginated sac-like structure, filled with toxic fluid, which occurs in the stinging cells

A

Nematocyst

36
Q

the trigger that responds to a chemical substance in animal prey

A

Cnidocil

37
Q

the tissue layer in cnidaria that is adapted for digestion and absorption of nutrients

A

endoderm

38
Q

the phylum in the animal kingdom which includes the flatworms

A

platyhelminthes

39
Q

the outer layer covering the epidermis which protects parasitic flatworms against enzyme action in their hosts

A

cuticle

40
Q

the type of digestive tract occurring in some flatworms with only one opening, for example a mouth at the front

A

Sac-like gut.

41
Q

process through which gases are transported in flatworms

A

diffusion

42
Q

specialised cells in platyhelminthes is responsible for excretion

A

flame cells

43
Q

the phylum in the animal kingdom which includes segmented worms

A

annelida

44
Q

the cavity in the mesoderm as found in the phylum annelida

A

Coelum

45
Q

the germ layer that gives rise to the epidermis cuticle and nervous system in annelida

A

ectoderm

46
Q

ectoderm the type of skeleton found in annelida

A

hydrostatic skeleton

47
Q

the type of digestive tract in annelida where mouth and anus occur

A

through gut

48
Q

the type of blood system found in annelida where the blood is restricted to blood vessels

A

closed blood system

49
Q

the excretory organs for nitrogenous waste in annelida

A

nephridia

50
Q

the most advanced phylum of all invertebrates

A

arthropoda

51
Q

the type of skeleton found in crustaceans

A

exoskeleton

52
Q

the polysaccharide which occurs in the exoskeleton of arthropoda

A

Chitin

53
Q

the reduced blood filled coelum in arthropoda

A

Haemocoel

54
Q

the type of blood system in arthropoda where the blood occurs in blood vessels but is not restricted to blood vessels

A

open blood system

55
Q

the specialised organs for gaseous exchange found in insects

A

Tracheae

56
Q

the most advanced phylum in the animal kingdom

A

Chordata

57
Q

the dorsal rod-like structure of connective tissue found in the embryonic stadia of animals belonging to the phylum chordata

A

notochord

58
Q

the subphylum under which animals with a vertebral column are classified

A

vertebrata

59
Q

the type of symmetry found in members of the phylum chordata

A

bilateral symmetry

60
Q

the type of skeleton occurring in chordata

A

endoskeleton

61
Q

the specialised organs for gaseous exchange found in fish

A

Gills

62
Q

the process through which dead plant and animal material are broken down to simple nutrients

A

decomposition

63
Q

the schematic representation used to indicate the evolutionary relationships between different groups of animals

A

phylogenetic tree