What is an Animal
Sponges/Cnidarians
Worms/Mollusks
Arthopods
Echinoderms
100
What are the four functions of an animal?
1. Obtaining food and oxygen 2. Keeping internal conditions stable 3. Moving 4. Reproducing
100
How do sponges and cnidarians reproduce?
Both sexually and asexually
100
What kind of symmetry do worms have?
bilateral
100
What are the jointed attachments on an arthropod called?
an appendage
100
How do echinoderms reproduce?
sperm and egg is released into the water
200
What are the levels of cellular organization?
Cells-Tissues-Organs-Organ system-Organism
200
What are characteristics that all worms share?
invertebrates, long narrow bodies w/o legs
200
What are the major groups of arthropods?
crustaceans, arachnids, centipedes, millipedes, and insects
200
What are the 4 types of Echinoderms
sea star, sea cucumber, sea urchins, and brittle stars
300
True or False: Animals with radial symmetry can live on land.
False- all animals with radial symmetry live in water
300
How do Cnidarians capture prey?
Using stinging cells w/in tentacles.
300
What are the three major groups of mollusks?
gastropods, bivalves, and cephalopods
300
What is it called when a crustacean larvae turns into an adult?
Metamorphosis
300
What supports an echinoderms body
endoskeleton
400
Biologists classify animals into about 35 major groups. What are they called?
Phylum.
400
What type of symmetry does a sponge have?
None.
400
What special features do gastropods have to help them eat?
A radula.
400
What does an abdomen of an arachnid contain?
reproductive organs and part of the digestive system.
400
Name of 20 armed sea star
pycnopodia
500
Classifying animals helps biologists make sense of what?
Its diversity.
500
What is a collar cell?
Heart like pump w/ flagella for moving water.
500
What is a mantle and what does it do?
A thin layer of tissue that covers internal organs and secretes shell making proteins.
500
How many species are in the insect group of beetles and weevils?
350,000
500
What does echinoderm mean
spiny skin
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