Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Biology 1020 Lab > Lab 8 - Invertebrates (1) > Flashcards

Lab 8 - Invertebrates (1) Flashcards

1
Q

animals are characterized by (2)

A
  1. multicellularity
  2. heterotrophic organisms
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

most animals are _____(motile or sessile)

A

motile

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

how do animals differ from plants and fungi

A

lack cell walls

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

how are animals held together WITHOUT cell walls

A

structural proteins

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

where do animal tissues develop from

A

embryonic layers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

when do animal tissues form

A

during the development of blastula and gastrula stages

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

reproduction of animals is

A

gametic meiosis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

what is the only haploid stage in animal reproduction

A

gametes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

the only multicellular stage in gametic meiosis is

A

diploid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

products of meiosis in gametic meiosis are

A

gametes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

types of symmetry

A
  1. asymmetrical
  2. radial
  3. bilateral
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

types of body cavities

A
  1. pseducoelmates
  2. acoelomates
  3. eucoelomates
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

how do animals in the basal lineage of the Metazoa differ from other animals

A
  1. lack of true tissue
  2. symmetry is often radial or lacking
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

what is the basal lineage

A

Phylum Porifera (sponges)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Phylum Porifera are sessile or motile

A
  1. sessile
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Phylum Porifera live in

A

marine environments and sometimes freshwater

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

how do Phylum Porifera feed

A

by filtering water through pores

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

what line the pores for filtering water in Phylum Porifera

A

choanocytes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

choanocytes

A

flagellated internal collar cells

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

how does water enter Phylum Porifera

A

through microscopic in currents openings (ostium)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

where does the water go once it has entered the Phylum Porifera

A

to the spongocoel

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

simpler species of Phylum Porifera traits

A
  1. vase-shaped
  2. single excurrent opening (oscula)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

larger species of Phylum Porifera traits

A
  1. asymmetrical
  2. numerous excurrent oscula
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

oscula vs ostium in Phylum Porifera

A

oscula
1. excurrent opening

Ostium
1. incurrent opening

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
what do some sponges in Phylum Porifera secrete
glassy or calcareous skeletal structures called spicules
26
do all members of Phylum Porifera have spicules
NO - some lack them and instead have skeletons made from flexible spongin
27
can Phylum Porifera members have both spongin and spicules
yes
28
Eumetazoa animals are composed of
1. definite tissues and organs 2. bilateral or radial symmetry 3. alimentary tract with one or two openings 4. bodies with 2 or 3 embryonic tissues
29
what does an alimentary tract look like with one opening (Eumetazoa)
the mouth
30
what does an alimentary tract look like with two openings (Eumetazoa )
both mouth and an ANUS
31
compare the different bodies and their tissues possible for members of Eumetazoa
1. 2 tissues - endoderm and ectoderm 2. 3 tissues -endoderm, ectoderm, mesoderm
32
two types of body symmetry in Eumetazoa
radially symmetry bilateral symmetry
33
do bilateral symmetrical animals in Eumetazoa form a clade?
YES - clade Bilateria
34
radial symmetrical animals in Eumetazoa are _____
diploblastic
35
diploblastic
2 main embryonic tissue layers
36
how are inner and outer layers separated in diploblastic animals
by a thick or thin noncellular gelatinous matrix called mesoglea
37
how many openings do diploblastic animals have
ONE opening from the gastrovascular cavity
38
is organ development extensive or limited in diploblastic animals
limited
39
example of radially symmetrical, diploblastic animal
Phylum Cnidaria
40
Phylum Cnidaria includes
1. hydras 2. jellyfish 3. corals 4. anemones
41
symmetry shown by Phylum Cnidaria
radial
42
what do Phylum Cnidaria have around their mouths
tentacles
43
do Phylum Cnidaria have a gastrovascular cavity
YES
44
how does the gut of Phylum Cnidaria communicate with the outside world
via the mouth
45
is there an anus in Phylum Cnidaria
NO
46
unique trait of Phylum Cnidaria
stinging cells (Cnidocytes) containing nematocysts which can be used for defensive or offensive
47
2 basic body plans of Phylum Cnidaria
1. sexual, motile medusa 2. asexual, nonmotile sessile or slow-moving polyp
48
is the medusa of Phylum Cnidaria sexual or asexual
sexual
49
is the polyp of Phylum Cnidaria sexual or asexual
asexual
50
habitat of Phylum Cnidaria
1. marine 2. some freshwater
51
two clades of Phylum Cnidaria
1. medusozoan 2. anthozoan
52
dominant form of clade Medusozoan of Phylum Cnidaria
polyp
53
what stage is reduced in medusozoan of Phylum Cnidaria
medusae
54
Clade medusozoan includes
1. Hydra 2. Portuguese-Man-Of-War
55
Hydrozoan medusa disperse through ____ in Clade Medusozoan
jet propulsive swimming
56
velum importance for some members of Medusozan
a layer of tissue around the edge of the medusa that aids in jet-propulsion
57
Anthozoans have two main body types
1. large, solitary anemones 2. corals
58
traits of anemones of Clade Anthozoan in Phylum Cnidaria
1. large and solitary 2. fleshy 3. LACK any calcareous exoskeleton 4. often very colourful when living
59
traits of corals of Clade Anthozoan in Phylum Cnidaria
1. live in warm, clear tropical waters 2. form reefs 3. DO secrete calcareous exoskeletons
60
are members of Bilateria triploblastic or diploblastic
triploblastic
61
main symmetry of Bilateria
bilateral
62
are orans well developed or limited in Bilaterians
well developed
63
what are organs organized into in Bilaterians
organ systems
64
types of coelom in Bilateria
1. coelomate 2. acoelomate 3. pseudocoelomate
65
acoelomate
ABSENT body cavity (coelom)
66
Pseudocoelomate
a coelom PARTLY lined with mesoderm
67
eucoelomate
coelom COMPLETELY lined with mesoderm
68
two types of development
1. Protostome development 2. Deutersotome development
69
animals with Protostome development are characterized by
1. spiral and determinate cleavage 2. mesoderm arising from cells near the lip of blastophore 3. coelom arising as a split of the original SOLID MASS of mesoderm 4. mouth arises from the blastophore
70
two lineages showing Protostome development
1. Lophotrochozoans 2. Ecdysozoa
71
what do FEW eucoelomate phyla in Lophotrochozoans show
ciliated tentacles (lophophore)
72
what do SOME eucoelomates phyla in Lophotrochozoans
ciliated trochophore larvae
73
four phyla in the Lophotrochozoans lineage
1. Phylum Platyhelminthes 2. Phylum Rotifera 3. Phylum Mollusca 4. Phylum Annelida
74
two examples of species in Phylum Platyhelminthes
1. Planarian 2. tapeworms
75
Species: Phylum: Lineage: Clade: Major Lineage
1. Planarian 2. Phylum Platyhelminthes 3. Lophotrochozoa 4. Bilateria 5. Euemetazoa
76
Planaria habitat in Phylum Platyhelminthes
freshwater
77
Planarians are
flatworms
78
do Planarian from Phylum Platyhelminthes show cephalization
yes
79
traits of tapeworms from Phylum Platyhelminthes
1. scolex and hooks 2. long chains of segments (proglottids)
80
where do proglottids form in tapeworms
region immediately behind the scolex
81
do tapeworms have both male and female reproductive systems or just one
BOTH
82
the growth of what allows the tapeworms to become sexually mature and filled with eggs (gravid)
as the proglottids age
83
function of proglottids in tapeworms
Each proglottid has both male and female sexual organs and is responsible for producing the parasite's eggs
84
function of scolex in tapeworms
scolex (head) functions as an anchoring organ that attaches to intestinal mucosa
85
Phylum Rotifera belong to _____
85
Phylum Rotifera belong to _____
Lophotrochozoans
86
type of coelom in Phylum Rotifera
pseudoceolomates
87
habitats of Phylum Rotifera
marine and freshwater
88
how do Phylum Rotifera feed
with an anterior ciliated corona and break up food particles with complex internal jaws
89
what are the jaws called in Phylum Rotifera
mastax
90
how are Phylum Rotifera DIFFERENT from Phylum Platyheminthes
they have a complete digestive tract with a mouth AND an anus
91
type of symmetry of Phylum Mollusca
bilateral
92
Phylum Mollusca are ______ (coelom)
eucoelomate
93
Phylum Mollusca are ______ development (protostome or deuterostome)
protostome
94
what do Phylum Mollusca LACK
segmentation
95
parts of the body in Phylum Mollusca
1. foot 2. visceral mass 3. mantle 4. mantle cavity 5. shell 6. radula
96
foot function in Phylum Mollusca
used for locomotion and food capture
97
visceral mass function in Phylum Mollusca
contains the organ systems
98
mantle function Phylum Mollusca
soft tissue that secretes the shell
99
mantle cavity function in Phylum Mollusca
where the gills and excretory organs are found
100
shell in Phylum Mollusca is
calcareous
101
radula in Phylum Mollusca
a rasping organ in the MOUTH that is used to scrape up food
102
four clades within Phylum Mollusca
1. Polyplacophora 2. Gastropods 3. Bivalvia 4. cephalopods
103
Clade Polyplacophora includes
chitons
104
Clade Polyplacophora have _____ along the dorsal midline
EIGHT overlapping shall plates
105
Clade Polyplacophora use the foot as
as suction cup to adhere to rocks
106
Clade Polyplacophora use the radula
to scrape algae from rocks
107
Clade Gastropoda includes
snails and slugs
108
Clade Gastropoda's shell is
a single spiral shell (not always present)
109
Clade Gastropoda bodies show
torsion/twisting
110
what is secreted in Clade gastropoda to help with locomotion
mucus
111
what is the radula used for in Clade gastropoda
feeding
112
Clade Bivalvia includes
clams, oysters, scallops and mussles
113
describe the shell of Clade Bivalvia
paired lateral shells that are hinged dorsally
114
what is the radula used for in Clade Bivalvia
ABSENT
115
what has happened to the head in Clade Bivalvia
reduced
116
what structures is enlarged and why in Clade Bivalvia
gills for suspension or filter feeding
117
the foot is used for _____ _in Clade Bivalvia
anchorage and locomotion
118
Clade Cephalopoda includes
1. nautiluses 2. squids 3. octopuses
119
what is unique about the head and foot in Clade Cephalopoda
it has fused together
120
what member of Clade Cephalopoda is this the shell is multi-chambered or external
Nautilus
121
what member of Clade Cephalopoda is this the shell is internal
squids
122
what member of Clade Cephalopoda is this the shell is absent
in octopuses
123
how is the head modified in Clade Cephalopoda
into tentacles for prey capture and manipulation
124
what form is the foot in Clade Cephalopoda and what is the function
forms a siphon and is modified for jet-propelled locomotion
125
are Phylum Annelida segmented or unsegmented worms
segmented
126
how are segments divided in Phylum Annelida
by septa
127
Phylum Annelida are _______ (coelom)
eucoelomates
128
do Phylum Annelida show cephalization
YES
129
cephalization
development of an anterior head and concentration of nervous system and sense organs
130
what kind of circulatory system do Phylum Annelida have
closed
131
closed circulatory system
distant from the heart, the arteries and veins are connected by capillaries
132
do Phylum Annelida have both a mouth and an anus? If so, what is this called
Yes - complete gut
133
what are two major clades in Phylum Annelida
1. Errantia and Sedentaria
134
Polychaetes in Phylum Annelida live in
marine habitats
135
Polychaetes in Phylum Annelida traits (3)
1. lateral, fleshy parapodia 2. numerous chaetae 3. well-developed head appendages (jaws, tentacles and eyes)
136
do Polychaetes in Phylum Annelida have sexes or same body sexes
separate sexes - Dioecious
137
Earthworms are in
Phylum Annelida
138
Earthworms in Phylum Annelida live
in freshwater or terrestrial
139
COMPARE earthworms and Polychaetes of Phylum Annelida
earthworms 1. have few chaetae per segment 2. LACK parapodia Polychaetes 1. have numerous chaetae per segment 2. have lateral, fleshy parapodia
140
method of feeding in earthworms
1. scavengers
141
are earthworms hermaphroditic or dioecious
hermaphroditic
142
leeches are in
Phylum Annelida
143
leeches live in
freshwater but some in damp terrestrial
144
how are leeches and earthworms similar
both have clitellum and are hermaphroditic
145
clitellum function
swollen sack in which eggs are stored.
146
function of chaetae
bristle, made of chitin that function in locomotion
147
how are leeches different from BOTH earthworms and polychaetes
they lack chaetae
148
what kind of feeders are leeches
ectoparasite blood feeders
149
describes the suckers in leeches
1. anterior sucker is reduced 2. posterior sucker is conspicuous
150
do leeches have eyes
yes
151
are Phylum Porifera in the Eumetazoa lineages
NO
152
least inclusive to most inclusive
Hydra: Medusozoan: Phylum Cnidaria: Eumetazoan: Metazoa
153
least inclusive to most inclusive
Portuguese man of war: Phylum Cnidaria: Eumetazoa: Metazoa
154
least inclusive to most inclusive
Sea Anemone: Anthozoan: Phylum Cnidaria: Eumetazoa: Metazoa
155
least inclusive to most inclusive
Coral: Anthozoan: Phylum Cnidaria: Eumetazoa: Metazoa
156
least inclusive to most inclusive
tapeworm: Phylum Platehelminthes: Lophotrochozoa: Bilateria: Eumetazoa: metazoa
157
least inclusive to most inclusive
Rotifer: Phylum Rotifera: Lophotrochozoa: Bilateria: Eumetazoa: Metazoa
158
least inclusive to most inclusive
Polyplacophora: Phylum Mollusca: Lophotrochozoa: Bilateria: Eumetazoa: Metazoa
159
least inclusive to most inclusive
Gastropod: Phylum Mollusca: Lophotrochozoan: Bilateria: Eumetazoa: Metazoa
160
least inclusive to most inclusive
Bivalvia: Phylum Mollusca: Lophotrochozoan: Bilateria: Eumetazoa: Metazoa
161
least inclusive to most inclusive
Cephalopoda: Phylum Mollusca: Lophotrochozoan: Bilateria: Eumetazoa: Metazoa
162
least inclusive to most inclusive
Polychaetes: Phylum Annelida: Lophotrochozoa: Bilateria: Eumetazoa: Metazoa
163
least inclusive to most inclusive
Earthworms: Phylum Annelida: Lophotrochozoan: Bilateria: Eumetazoa: Metazoa
164
least inclusive to most inclusive
Leeches: Phylum Annelida: Lophotrochozoan: Bilateria: Eumetazoa: Metazoa
165
body symmetry in Porferia
radial or NONE
166
body symmetry in Cnidaria
radial
167
body symmetry Platyhelminthes
bilateral
168
body symmetry in Rotifera
bilateral
169
body symmetry in Mollusca
bilateral
170
body symmetry in Annelida
bilateral
171
number of body layers in Porifera
NONE
172
number of body layers in Cnidaria
2
173
number of body layers in Platyhelminthes
3
174
number of body layers in rotifera
3
175
number of body layers in Mollusca
3
176
number of body layers in Annelida
3
177
habitat of Porifera
1. marine 2. fresh
178
habitat of Cnidaria
1. marine 2. fresh
179
habitat of Platyhelminthes
1. marine 2. fresh 3. terrest
180
habitat of Rotifera
1. Fresh 2. SOME are marine and terrest
181
habitat of Mollusca
1. marine 2. fresh 3. terrest
182
habitat of Annelida
1. marine 2. fresh 3. terrest
183
lifestyle of Porifera
sessile
184
lifestyle of Cnidaria
1. motile medusa 2. sessile polyp
185
lifestyle of Platyhelminthes
1. free-living with many being parasitic
186
lifestyle of Rotifera
free-living
187
lifestyle of Mollusca
free-living
188
lifestyle of Annelida
free-living
189
specialized characters of Porifera
presence of choanocytes
190
specialized characters of Cnidarians
Cnidocytes
191
specialized characters of Platyhelminthes
1. acoelomate 2. dorsoventrally flattened
192
specialized characters of Rotifera
1. Pseudocoelomate 2. Crown of cilia
193
specialized characters of Mollusca
1. eucoelomates 2. body plan of - mantle - muscular foot -visceral mass
194
specialized characters of Annelida
1. eucoelomate 2. segmented worms
195
Discharges nematocyst
196
1
hooks
197
2
suckers
198
3
scolex
199
4
proglottids
200
A
auricle
201
B
anus
202
C
gastrovascular cavity

Biology 1020 Lab (11 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions