Science 7 - Invertabrates And Starfish Test

Front 1

Porifera(2)

Back 1

- sponges
- has many pores
- live iin fresh & salt water

Front 2

Cnidarians(4)

Back 2

- jellyfish, sea anemone, coral, hydra
- saclike bodies
- stinging cells
- some have tentacles
- live in water

Front 3

Platyhelminthes(2)

Back 3

- flatworms, tapeworms, planaria
- long, flat ribbon like body
- most get food by attaching to another organism and absorbing food from that orgamism

Front 4

Nematods(2)

Back 4

- round worms
- long thin, tubelike bodies with no segments
- most get food by attaching to another organism and absorbing food from that organism

Front 5

Annelids(2)

Back 5

- segmented worms, earthworms
- long tubelike body that is divided into segments
- simplest organisms with a nervous system

Front 6

Mollusks (3)

Back 6

- mollusks, snails, oyster, clam, squid, octopus
- soft bodies
- many have shells
- live in salt water, fresh water, and on land

Front 7

Arthropods(5)

Back 7

- arthropods, crabs, lobsters, centipedes, insects
- have jointed legs
- live on land and in water
- have a hard outer covering
- have segmented bodies
- some have wings

Front 8

Echinoderms(2)

Back 8

- echinoderms, starfish, sea urchin, sand dollar, sea cucumber
- have similar parts(like arms) that extend from the middle body section
- have tube feet and spines

Front 9

Polyp(4)

Back 9

- hydra, coral
- reproduce asexually
- stay in one place
- opening on top
- vase shaped

Front 10

Medusa(4)

Back 10

- jellyfish, portuguese man of war
- reproduce sexually
- move around
- opening on bottom
- bowl shaped

Front 11

Similarities of Polyp & Medusa
(7)

Back 11

- cndarians
- nematocysts
- one opening (mouth)
- central cavity
- tentacles
- live underwater
- radial symmetry

Front 12

The body of a sponge is covered up with tiny holes called ______.

Back 12

pores

Front 13

Some sponges have a skeleton made up of a soft flexible material called _________.

Back 13

spongin

Front 14

The soft bodies of most sponges are supported by a network of spikes or ________.

Back 14

spicules

Front 15

Gastropods(5)

Back 15

- garden snail, slug
- mollusk
- single/ no shell
- outer shell
- use radulas to make plant
matter easier to swallow
- use mucus to slowly glide along rough surfaces

Front 16

Bivalves

Back 16

- clam, mussel
- mollusk
- two shells; held together by powerful muscles
- outer shell
- use filter feeders to filter out small organisms
- rapidy claps shells together to move

Front 17

Cephalopods

Back 17

- octopus
- mollusk
- most have inner shells
- use tentacles to capture food
- moves by using a form of jet propulsion

Front 18

Arthopod: movement

Back 18

appendages:
- jointed legs
- antennae
- claws
- walking legs
- wings

- differ by # & location of appendages
- live on ground/ocean ground

Front 19

Arthropod: Support and Protection

Back 19

- exoskeleton- hard, rigid outer covering
- limits water loss
- protects from predators
- venom

Front 20

Arthropods: Reproduction

Back 20

- reproduce sexualy- 2 parents- male & female
- in most arthropods sperm & egg unite in female's body

Front 21

Arthropods: Internal Transport

Back 21

- blood carries food through the body, but not oxygen
- open circulatory system

Front 22

Arthropods: Breathing

Back 22

- 3 basic respiratory organs:
- gills
- book lungs
- system of air tubes

Front 23

Crustacean

Back 23

- arthropid
- hard exoskeleton
- two pairs of antennae
- mouth parts for crushing & grinding food
- divided into segments
- 1 pair of appendages per segment
- able to regenerate
- breathe w/gills
- hermit crab, crabs, lobsters, barnacles, shrimp

Front 24

Centipeded & Millipedes

Back 24

- many legs
- exoskeleton not waterproof

Front 25

Spiders and Their Relatives

Back 25

- head & chest part, abdomen part
- four pairs of walking legs
- eat insects
- spiders, scorpions, ticks, mites
- produce silk
- injects venom into prey
- book lungs & air tubes

Front 26

Insects

Back 26

- body divided into 3 parts
- 3 pairs of legs
- beetle, fly, moth, cricket, grasshopper

Front 27

Grasshopper

Back 27

- arthropod
- 3 pairs of legs
- 5 eyes
- internal sexual reproduction
- undergo incomplete metamorphosis
- shed exoskeleton many times throughout life

Front 28

Starfish

Back 28

- internal skeleton
- 5 parts to body
- water vascular system
- tube feet
- spines