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Biology 102 > Ch. 32 > Flashcards

Ch. 32 Flashcards

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1
Q

Animal Characteristics (8)

A

1) Multicellular
2) Heterotroph
3) Lack of cell wall
4) Have nerves, muscles, ability to move
5) Sexual reproduction
6) Sensory structures
7) Nervous system
8) Extracellular matrix, unique cell junction

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2
Q

Five main morphological and developmental features

A

1) Presence or absence of different tissue types
2) Type of body symmetry
3) Number of germ layers
4) Presence or absence of true body cavity
5) Patterns of embryonic development

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3
Q

Para

A

Along side

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4
Q

Zoa

A

Animals

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5
Q

Metazoa

A

All animals

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6
Q

Metazoa is divided into ______

A

Parazoa: No specialized tissues or organs
Eumetazoa: More than one type of tissue or organs

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7
Q

Porifera

A

Sponges; bearing pores

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8
Q

meta

A

Change; altered; after or along with

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9
Q

para

A

along side

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10
Q

eu

A

true

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11
Q

3 types of symmetry

A
  1. Asymmetry
  2. Radial symmetry(like flowers)
  3. Bilateral symmetry
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12
Q

What type of symmetry are Eumetazoa?

A

Radiata (radial) or Bilateria (bilaterally)

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13
Q

What do bilateral animals have?

A

Cephalization, dorsal, and ventral ends

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14
Q

What are the germ layers for Bilateral animals?

A

1) Ectoderm
2) Mesoderm
3) Endoderm
are triploblastic

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15
Q

What do Radial animals have?

A

Oral and aboral sides

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16
Q

What are the germ layers for radial animals?

A

diploblastic:
1) Ectoderm
2) Endoderm

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17
Q

Cephal

A

head

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18
Q

lateral

A

side to side

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19
Q

bi

A

two

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20
Q

ab

A

away

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21
Q

germ

A

give rise

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22
Q

How many germ layers do bilateria have?

A

triploblastic- 3 layers

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23
Q

How many germ layers do radiata have?

A

diploblastic- 2 layers

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24
Q

When do cell layers develop

A

during gastrulation

25
Q

Endoderm

A

Inner layer

26
Q

Ectoderm

A

Outer layer

27
Q

Mesoderm

A

3rd layer in bilateral animals
forms muscles and most other organs

28
Q

tri

A

three

29
Q

blast

A

to lay down

30
Q

derm

A

skin

31
Q

endo

A

inside

32
Q

ecto

A

outside

33
Q

meso

A

middle

34
Q

gastro

A

stomach

35
Q

arche

A

old, primitive

36
Q

entero

A

intestine

37
Q

What is a true coelom?

A

Has a body cavity that is completely lined with mesoderm (coelomates)

38
Q

Characteristics of Psuedocoelom?

A

Coelom is not completely lined with tissues derived from mesoderm (psuedocoelomates)

39
Q

Characteristic of Acoelomates?

A

Lack a body cavity entirely

40
Q

What does fluid filled body cavity do?

A

Protection of internal organs or be used as HYDROSTATIC skeleton

41
Q

What does coelom mean?

A

Body cavity

42
Q

Pseudo

A

False

43
Q

mesenchyme

A

connective tissue

44
Q

chymus

A

bodily fluid (Latin)

45
Q

Protostome patterns for embryonic development

A

1) Spiral cleavage
2) Cleavage is determinate
3) Blastopore becomes mouth

46
Q

Deuterostome patterns for embryonic development

A

1) Radial Cleavage
2) Cleavage is indeterminate- pluripotent stem cells
3) Blastopore becomes anus

47
Q

stome

A

mouth

48
Q

Deutero

A

second

49
Q

What are larva?

A

sexually immature and morphologically distinct from the adult
Eventually undergoes metamorphosis to become a juvenile

50
Q

What is juvenile

A

Resembles an adult but not yet sexually mature

51
Q

Morph

A

shape

52
Q

What are Hox genes

A

A unique family of developmental genes (most animals share this)
Regulates development of body form

53
Q

What are lophotrochozoa?

A

Another clade of bilaterian invertebrates

54
Q

What kind of feeding structures do lophotrochozoans have?

A

Lophophore

55
Q

Distinct developmental stage for lophotrochozoa

A

trochophore larva

56
Q

trocho

A

wheel

57
Q

phore

A

bear

58
Q

lopho

A

crested

59
Q

What is the 8-cell stage of embryonic development called?

A

Morula

Biology 102 (38 decks)

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