Latin for "pore-bearing," sponges belong to this Phylum?
What is PORIFERA
100
The defining characteristic that all invertebrates share is that they lack one of these
What is a backbone
100
This is the name of the tiny spines that give sponges their support and sometimes defense.
What is spicules
100
This is the name for the sessile stage of a cnidarians life cycle.
What is polyp
100
These two structures are found in all mollusks (I'm not talking about their soft body, which the name implies)
What is mantle and muscular foot
200
Meaning "tiny-ringed," segmented worms like earthworms and leeches belong to this phylum
What is ANNELIDA
200
We can use symmetry to describe the body plans of animals. If an animal only has one line of symmetry that divides it into mirror images, it has this type of symmetry.
What is bilateral
200
This is the name given to the stinging cells on a cnidarians tentacles
What is nematocysts
200
This organism creates reefs by leaving hard limestone "skeletons" of the dead behind.
What is corals
200
What phylum has the largest number of species.
What is Arthropoda
300
Meaning "jointed-foot," insects, arachnids, and crustaceans are the major classes in this phylum
What is ARTHROPODA
300
These are the simplest of all invertebrates
What is Sponges
300
Gastropods, such as snails and slugs, have a specialized mouth that is used to shred food into smaller pieces. This mouth is called this
What is a radula
300
Worms are classified by their what
What is shape
300
The process is which an arthropod can shed its exoskeleton in order to grow unrestricted is called this
What is molting
400
Meaning "soft-body," clams and octopuses are members of this phylum
What is MOLLUSCA
400
This term describes an organism that stays attached to one spot and does not move.
What is sessile
400
The word "echinoderm" means this
What is spiny-skinned
400
This is how all worms obtain oxygen
What is through their skin
400
Habitat is the only characteristic that does not differentiate these similar arthropods. You can, however, tell them apart by their diet, body shape and number of legs per body segment.
What is millipedes and centipedes
500
Members of this phylum have tentacles with stinging cells used for protection and obtaining prey
What is CNIDARIA
500
This type of reproduction occurs most commonly in invertebrate animals
What is sexual reproduction
500
Echinoderms use these for movement and obtaining food
What is TUBE FEET
500
Cnidarians exhibit this type of symmetry
What is radial
500
Arthropods that go through a complete dramatic change from birth to adulthood are said to go through this process