Inv. Characteristics
What kind of symmetry does an animal have if it has multiple lines of symmetry?
Radial Symmetry
What are the classes of Arthropoda?
What does the term mollusk mean?
Soft Body
True/False
All fish have swim bladders?
Bonus points: What is the purpose of the swim bladder?
False,
Only the Bony Fish (Osteichthyes) have a swim bladder and it is used for buoyancy.
If you were told to examine the VENTRAL side of a specimen, where would you look?
The belly, or underneath.
The term invertebrate means...
No Backbone (no vertebrae)
Which class is the largest class of Arthropoda?
Bonus: Largest order of this class is?
Insects
Coleoptera
What are the three classes of mollusks?
Gastropods, Cephalopods and Bivalves.
What are the three classes of fish?
Agnatha, Chondrichthyes and Osteichthyes
What three labels would you use for the gastropod?
Head, Mantle/shell and Foot
There are some animals labeled as simple invertebrates. In which group would you find the jellyfish?
Cniderians
What keeps an arthropod from drying out, as well as protects and provides support?
Exoskeleton
What is the total number of arms and tentacles of a squid?
10
Sense organs that feel vibrations in the water.
Lateral Line system
What is the purpose of the spiracles, and what animal are they found on?
Air flow for the grasshopper.
What do all invertebrates have to digest food?
Some sort of gut or body cavity.
What are some examples of specialized body parts we would find in this Phyla (at least 2)?
Wings, Antennae, Pincers
Which of the three classes of mollusks is the smartest?
Cephalopods
An egg fertilized outside of the fish's body is called...
External Fertilization
What is the purpose of the PEN in a squid?
Structural support
Starting with the Domain and ending with Order, what is the taxonomical classification of a grasshopper?
Eukaria - Animalia - Arthropoda - Insecta - Orthoptera
What is the difference between Incomplete and Complete Metamorphosis?
Incomplete has a nymph phase, whereas Complete has a larva and pupa stage instead.
Bivalves are filter feeders. What does that mean?
What are two differences between endothermic and ectothermic animals?
Endotherms create their own heat, while ectotherms rely on their environment.
Endothermic heating requires more energy than ectothermic heating.
What are the three parts of a grasshopper's leg?