A introduction to invertebrates

Helpfulness: 0
Set Details Share
created 5 months ago by raysharosa16
53 views
show moreless
Page to share:
Embed this setcancel
COPY
code changes based on your size selection
Size:
X
Show:
1

sessile and have porous body and choanocytes

sponges

2

suspension feeders- capture food particles that are suspended in the water

sponges

3

sponges belong to what phylum?

Porifera

4

Porifera's live mostly at?

live in both, fresh and marine waters

5

most sponges has individual functions as both males and females, which is called?

hermaphrodites

6

choanocytes, amorbocytes belongs to?

sponges

7

which animals are radially symmetric?

cnidarians

8

all animals with true tissues belongs to the phylum of?

Eumetazoa

9

the basic body plan of Cnidarians can be describe as?

a sac with a central digestive compartment, the gastrovascular cavity

10

Cnidarians has a single openning which is describe as?

mouth and anus

11

their body plan has two variation

floating medusa and sessile polyp

12

cnidarians eat? are...?

carnivores (use testicles to capture the prey)

13

cnidarians tenticles descriptions

-has unique cells that function in defense and thr capture of prey

-some are stingling cells called nematocysts

-some are merely there to entagle the prey and bring it to the tentacles

14

Cnidarians have 4 major classes which are?

  1. Cubozoa (box jellies, sea wasps)
  2. Anthozoa (sea anemones, most corals, sea fans)
  3. Hydrozoa (portuguese man-of-war, hydra, Obelia, some corals)
  4. Scyphozoa (jellies, sea nettles)
15

in the class of scyphozoa are the?

jellies (medusa) are the prevalent form of the life cycle

16

in the class of cubazoa are what type of animals?

box jellies and sea wasps (medusa is box- shaped and has complex eyes)

17

in the anthozoa are which animals?

the corals and sea anemones (which occur only as polyps)

18

lophotrochozoans are which type of animals?

bilateral animals

19

clade of bilateral can be describe as

of animals that conists of bilateral symmetry and tripploblastic development

20

clade of lochotrochozoa are

some develop a lophophore for feeding, others pass through a trochophore larva stage, and a few have neither feature

21

flatworms, rotifers, ectoprocts, brachiopods, molluscs, and annelids falls under the clade of?

lophotrochozoa

22

flatworms are which phylum?

playhelminthes

23

flatworms are

flattened dorsoventrally and have a gastrovascular cavity

24

flatworms live in

marine, freshwater and damp terrestrial habitats

25

Platyhelminthes phylum (flatworms) have 4 major classes which are ?

  1. Monogenea (monogeneans)
  2. Turbellaria (mostlye free living flatworm, such as Dugesia)
  3. Cestoda (tapeworms)
  4. Trematoda (trematodes)
26

turbellaria class

morslty marine, turbellarians called PLANARIANS, have light sensitive eyespots and centralized nerve nets

27

parasites in or on other animals are that are flatworms are named?

Monogeneans and Trematodes, parasitize a wide range if hosts. Trematodes parasites many different kinds of animals. (Shistosoma is a parasite). Poduce proteins that mimic their host. Most monogeneans (parasite in fish).

28

tapeworms

parasitic living mostly in vertebrates.

Don't have digestive system.

29

Rotifers

small but have special organ systems acts as a digestive tube with a mouth and anus and a pseudocoelom. Reproduce by parthengenesis (produce more females from unfertilized eggs)

30

Lophophorates has three phyla

Ectoprocts, Phoronids, and brachiopods

31

lophophorates have a ?

lophophore.

-horsesoe- shaped, suspension- feeding organ bearing ciliated tentacles

-cilia bring water towards the mouth and tentacles trap the food

-also have a u-shaped alimentary canal and the absence of a distinct head

-have a true coelom

32

ectoprocts are?

colonial animals that superficially resemble plants

33

Phoronoids are?

tube dwelling marine worms

34

brachiopods

lamp shells, dorsal and ventral halves rather than lateral like in clams

35

Molluscs

snails, slugs, oysters, clams, octupuses and squids. Most are marine and some are terrestrial. Soft bodies animals, but most are protected by a hard shell of calcium

36

muscular foot is for

movement

37

visceral mass

containts most of the internal organs

38

mantle

the tissue that drapes over the visceral mass and secretes the shell

39

mollusks feed by

using a rasping oergan called a RADULA to scrape up food

40

molluscs have separate sexes with gonads located

in the visceral mass, but many snaeils are hermaphrodites

41

molluscs life cycle includes

a ciliated larva stage called a TROCHOPHORE

42

Mollusks have 4 major classes

  1. bivalvia )clams, mussle, scallops, oysters)
  2. cephalopoda (squids, ocyopuses, cuttlefish, chambered nautiluses)
  3. gastropodsa (snail, slugs)
  4. polyplacophora (chitons)
43

chiton belongs to the phylum of

polyplacophora

44

chitons are

oval shaped marine animals encased in an armor of eight dorsal plates. Use foot to more and suction to rock radula to ingest algae

45

gastropods are

snails and slugs. marine, freshwater, and terrestrial. Possess a single spiraled shell or have a reduced shell.

46

gastropods have a distinctive characteristic called

torsion- which cause the animals anus and mantle to end up above its head

47

bivalves

have a shel divided into two halves.

no distinct head

some have eyes and sensory tentacles

suspension feeder

48

bivalves use what to feed

they contains and use gills that are used for feeding as well as gas exchange

49

cepholopoda incluedes squirds and octopuses

incluedes squirds and octopuses.

Most octopuses–Creep along the sea floor in search of prey

•Squids use their siphon–To fire a jet of water, which allows them to swim very quickly

•One small group of shelled cephalopods–The nautiluses, survives today

50

cephalopods

are the only mollusks with closed circulatory system.

developed sense organs and complex brain