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Biology > Animal Kingdom > Flashcards

Animal Kingdom Flashcards

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AP® Biology flashcards Biology 101 flashcards
1
Q

what percent of the Animal Kingdom are insects

A

70%

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2
Q

characteristics of all animals

A
  • Ingestive heterotrophs
  • Multicellular
  • Mobile at some point in life
  • Eukaryotes
  • Produce gametes in gonads
  • Young develop in egg or mothers body
  • Some are sessile- permanently attached to one spot
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3
Q

Where did the first animals come from

A

the sea during precambrian era

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4
Q

what is symmetry where body parts are arranged around a central point

A

Radical symmetry

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5
Q

what is a pro of radical symmetry

A

detect food and danger from any direction

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6
Q

Symmetry where 1/2 of the body is a mirror image of the other half

A

Bilateral symmetry

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7
Q

what is a pro of bilateral symmetry

A

move more efficiently

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8
Q

what symmetry is having an arrangement of body parts that cannot be divided into corresponding sections

A

Asymmetrical

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9
Q

what is an example of bilateral symmetry

A

a beetle or a lobster

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10
Q

what is an example of radical symmetry

A

coral polyp

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11
Q

What is an example of asymmetrical

A

a crab

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12
Q

what is the top or back region

A

dorsal

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13
Q

what is the lower or belly region

A

ventral

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14
Q

what is the front or head region

A

anterior

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15
Q

what is the tail or rear region

A

posterior

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16
Q

define cephalization

A

most nervous and sensory structure are in the anterior end

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17
Q

what undergoes repeated cell division to form hollow ball of cells called the blastula

A

zygote

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18
Q

true or false
the blastula folds inward forming the gastrula stage

A

true

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19
Q

what is the opening into the gastrula called

A

blastopore- it becomes the mouth of the anus of the digestive tract

20
Q

what is “true” coelom

A

body cavity lined on both sides with mesoderm

21
Q

true or false
coelomates can be protostomes and deuterostomes

A

true

22
Q

what is an animal whose blastopore develops into a mouth

A

protostomes

23
Q

examples of protostomes

A
  • flatworms
  • roundworms
  • segmented worms
  • mollusks
  • arthropods
24
Q

define deuterostomes

A

an animal whose blastopore deveops into an anus

25
Q

examples of deuterostomes

A

echinoderms and chordates

26
Q

what is a body cavity lined on only 1 side with mesoderm

A

pseudoelom

27
Q

define acoelom

A

no body cavity

28
Q

what are advantages to body cavity

A
  • provides space for visceral organs
  • separates muscles of gut from muscles of body wall
  • fluid within acts as a simple circulatory system
29
Q

true or false
ALL animals have three cell layers that form during embryonic development called germ layers

A

FALSE

30
Q

what is the outer germ layer; forms epidermis, nerves sense organs

A

ectoderm

31
Q

what is endoderm

A

inner germ layer that forms lining of digestive tract and lining of respiratory tract

32
Q

Define mesoderm

A

middle germ later and forms muscles, bones, circulatory, reproductive, excretory systems, dermis

33
Q

inner tube-
Outer tube-
packed between tubes-

A

digestive tract
deals with outside world, protection, sense organs
muscles, blood vessels, visceral organs

34
Q

9 major phyla of animal kingdom

A

Porifera
Cnidaria
Platyhelminthes
Nematoda
Annelida
Mollusca
Arthropoda
Echinodermata
Chordata

35
Q

what is the result of fertilization of an egg from a sperm

A

zygote

36
Q

what is the inner germ layer that forms lining of digestive tract and lining of respiratory tract

A

endoderm

37
Q

True or false
A protostomes is an animal whose blastopore develops into an anus

A

False

38
Q

True or false
75% of all animals are vertebrates

A

false

39
Q

true or false
the first animals arose from the sea

A

true

40
Q

what type of symmetry is a gecko (lizard)

A

Bilateral

41
Q

what is NOT a protostomes

A

chordates

42
Q

what type of symmetry is a starfish

A

radical

43
Q

what is NOT something the mesoderm develop into

A

digestive system

44
Q

what are two advantages to having a body cavity

A

1) provides space for visceral
2) separates muscles of gut from muscles of body wall

45
Q

what does cephalization mean?

A

most nervous and sensory structure are in the anterior end

Biology (1 decks)

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