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Chapter 7 Simple Animals p. 133- 155
7.1 Animal Classification p. 134
1. Scientists have classified how many living things? _1.5 million____________
2. List 3 traits of animals
A _consumers – can’t make own food________________________
B. _move around________________________________________
C. _multi-cell____________________________________________________
3. Vertebrates animal with backbone______________________________
4. Invertebrates _animals without backbone________________________
5. Symmetry _balanced arrangement of body parts________________
A. Radial _parts are arranged in a circle_______________
B. Bilateral _body can be divided length-wise equally____
7. 2 Sponges and Stinging cell Animals p. 137
1. Sponges _invertebrates with pores, no definite shape_______________
2. Three traits of sponges
A. _live attached to rocks______________________________
B. _live in fresh water_______________________________
C. _have pores__________________________________________
3. Describe how sponges reproduce
_sexual__produce sperm and eggs________________________________________
_asexual – part of body breaks off and forms new sponge ; forms buds_
4. Stinging-cell animals _stinging cells, hollow body, lacks organs_________
5. Examples of stinging – cell animals _hydra, coral, jellyfish________________
6. Tentacles _arm-like parts that surround mouth_________________________
7.3 Worms p. 142
1. Flatworms _simplest worms, flattened body, lacks organs______________
2. Tapeworm _flatworm that lives in animal intestines and absorbs food_
3. Explain how humans can get tapeworms __a pig eats tapeworm eggs that hatch
inside the pig. The worms form cysts in the muscle. If people eat undercooked meat
with cysts, the tapeworm enters the body and grows in the
intestine___________________________
4. What is the best way to prevent getting tapeworms
__completely cooking meat_______________________________________________
5. Planarian __freshwater flatworm that is not a parasite___________________
6. Roundworms _long bodies with pointed ends; parasite in people, dogs and cats
7. Hookworms _roundworm that is a parasite of humans; enter body through feet
8. Anus _opening where undigested food leaves the body__________________
9. Segmented worms _complex worms that are divided into segments___
7.4 Soft-bodied animals p. 149
1. Soft-bodied animals _soft body protected by a shell; _____________
2. Mantle _thin fleshy tissue that makes the shell______________________
3. Three traits of soft-bodied animals
A. __kind of foot_____________________________________________
B. __whether a shell is present_____________________________
C. __number of shells____________________________________________
4. Examples of soft-bodied animals _clam, octopus, snail____________________