Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Biology 102 > Ch. 33 pt 1 > Flashcards

Ch. 33 pt 1 Flashcards

You may prefer our related Brainscape-certified flashcards:
AP® Biology flashcards Biology 101 flashcards
1
Q

What are invertebrates?

A

animals that lack backbone

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

what are the 4 feeding strategies?

A

1) filter feeder
2) mass feeder
3) deposit feeder
4) fluid feeder

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

map sponges from kindom Animalia

A

subkingdom: Parazoa
phylum: Porifera

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

Phylum Porifera characteristics (6)

A

1) Porifera (pore bearer)
2) Sponges
3) Lack tissues
4) Multicellular with several types of cells
5) No apparent symmetry
6) Adults are sessile, larvae are free-swimming

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

what type of feeding strategy do sponges use?

A

filter feeding

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

What is filter feeding?

A

Capturing food particles suspended in the water that pass through their body

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

Explain water movement for sponges

A

Water is drawn through pores into a cavity called the spongocoel and out through an opening called the osculum

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

What is an ostium?

A

an opening into a vessel or body cavity

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

what is an osculum?

A

Main opening at the aboral end of sponges

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

what are porocytes

A

cells that create the opening in sponges

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

osculum (Latin origin)

A

mouth

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What are the 2 different cell types in sponges?

A

1) choanocytes
2) amoebocytes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What separates the 2 cell layers in sponges?

A

gelatinous noncellular mesohyl layer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Characteristics of choanocytes (3)

A

1) flagellated collar cells
2) generate water current through sponge
3) ingest suspended food

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

characteristics of amoebocytes (5)

A

1) totipotent
2) found in mesohyl
3) play a role in digestion and manufacturing of skeletal fibers
4) absorb, digest, and carry food from choanocytes
5) move by pseudopodia

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

choano

A

funnel

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

What is the function of spicules?

A

structural support; mesohyle

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

Explain sexual reproduction for sponges? (4)

A

1) most hermaphrodites produce egg and sperm
2) gametes from amoebocytes or choanocytes
3) fertilization occurs in mesohyl
4) larvae exit through the osculum

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

Explain asexual reproduction for sponges?

A

via fragmentation
small fragment or bud detach and form new sponge

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

what is sequential hermaphroditism?

A

function as one sex and then as the other

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

Characteristics of Phylum Cnidaria (5)

A

1) radial symmetry
2) Diploblastic
3) gastrovascular cavity
4) single opening
5) true nerve cells arranged in nerve net

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

What are the two types of body plans in Cnidaria?

A

1) sessile polyp
2) motile medusa

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

What is a gastrovascular cavity?

A

extracellular digestion or incomplete gut
acts as hydrostatic skeleton in cnidarians

24
Q

sessile

A

stuck to one place; attached to a substrate

25
Q

polyp

A

a small growth with stalk

26
Q

motile

A

moving or movable

27
Q

How do cnidarians feed?

A

1) carnivores that use tentacles to capture prey
2) contain nemotocysts

28
Q

cnidocil

A

hair-like trigger

29
Q

what are cnidocytes?

A

contain trigger (cnidocil) and nematocyst that sting

30
Q

what controls movements in a cnidarian?

A

noncentralized nerve net

31
Q

hydro

A

water

32
Q

scyph

A

cup or can

33
Q

Anth

A

flower

34
Q

What are the 4 classes of Phylum Cnidaria?

A

1) hydrozoa (ex. hydra, and obelia)
2) scyphozoa (ex. jelly fish)
3) anthozoa (ex. sea anemone, and coral)
4) cubazoa (ex. box jellies)

35
Q

Characteristics of Ctenophora (comb jellies) (5)

A

1) 2 long tentacles without stinging cells that contain colloblasts
2) complete gut
3) calcareous particles
4) hermaphrodite
5) bioluminescent

36
Q

Act as orientation cue in Ctenophora

A

calcareous particles

37
Q

Collo

A

glue

38
Q

cteno

A

comb

39
Q

Characteristics of Class Cubazoa

A

1) have image-forming eyes (true organs)
ex) box jellies

40
Q

What are the characteristics Phylum Platyhelminthes? (9)

A

1) Flatworms
2) Respire by diffusion: lack a specialized respiratory or circulatory system
3) distinct excretory system with protonephridia and flame cell
4) More centralized nervous system
5) Acoelomates (without body cavity)
6) bilaterally symmetrical with a head
7) Cerebral ganglia receive input
8) light-sensitive eyespots or ocelli
9) Sexual and asexual reproduction

41
Q

Platy

A

flat

42
Q

helminth

A

parasitic worm

43
Q

What are ocelli?

A

simple eye, eye spot

44
Q

a

A

without or non

45
Q

coel

A

body cavity

46
Q

Nephridia

A

Nephrons-Kidneys

47
Q

Planarians (3)

A

1) Live in fresh water and prey on small animals
2) Has ocelli and centralized nerve nets
3) Hermaphrodites and can reproduce sexually or asexually through fission

48
Q

Trematoda (3)

A

1) Are parasites
2) Parasitizes humans spend part of lives in snail hosts
3) Produce surface proteins that mimic their host and release molecules that manipulate that host’s immune system

49
Q

Class Cestoda (6)

A

1) Tapeworms and parasites
2) head is called scolex in which there are several suckers
3) attach to intestinal walls of the host
4) absorb food that the host has digested
5) doesn’t kill host but causes to loose weight
6) Divided into sections called proglottids

50
Q

Class Cestoda reproduction (3)

A

1) contain little more than male and female reproductive organs
2) Sperm fertilize the eggs within the proglottids
3) Fertilized eggs are released when mature proglottids break off and burst off and open

51
Q

Phylum Nemertea (3)

A

1) Mainly marine but a few inhabit fresh water
2) simple circulatory system (no heart)
3) complete digestive tract (separate anus and mouth)
ex) Proboscis worms

52
Q

Phylum Rotifera (5)

A

1) tiny
2) marine
3) multicellular and have specialized organ systems
4) Complete digestive tract (alimentary canal)
5) Parthenogenesis unfertilized diploid eggs develop into females unfertilized haploid eggs become degenerate males that live long enough to produce sperm

53
Q

What is parthenogenesis?

A

when unfertilized diploid eggs develop into females

54
Q

Phylum Nematoda (2)

A

1) Have an alimentary canal
2) Lack circulatory system

55
Q

Trichinella spiralis

A

Is a parasite that can be acquired by humans from undercooked pork

56
Q

what is an alimentary canal?

A

digestive tube with separate mouth and anus

Biology 102 (38 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions