Show:
Invertebrates 1
Invertebrates 2
Invertebrates 3
Invertebrates 4
Invertebrates 5
100
All invertebrates have no ______________.
What is backbone?
100
This is the type of symmetry flatworms have.
What is bilateral?
100
The three sections of an insect.
What is the head, thorax, and the abdomen?
100
How clams obtain food.
What is by filtering food from the water?
100
An insect's life cycle, which includes changes in body form.
What is metamorphosis?
200
The four stages of metamorphosis. (In order from earliest to latest stage.)
What is egg, larva, pupa, and adult?
200
The type of circulatory system earthworms have.
What is closed?
200
The resting stage of insect development.
What is pupa?
200
Animals that have two shells hinged together are called _____________.
What are bivalves?
200
This type of skeleton is similar to a water balloon.
What is hydrostatic?
300
This type of animal has tube feet in its water-vascular system.
What is starfish?
300
A collection of nerve tissue called a "simple brain".
What is ganglion?
300
How many pairs of legs do insects have?
What is 3?
300
The phylum most animal species are found in.
What is Arthropoda?
300
Tiny bristles an earthworm uses for movement.
What is setae?
400

The stinging cells of a hydra or jelly fish.

What are nematocysts? 

400
The chamber in the earthworm's digestive system that grinds food during mechanical digestion.
What is the gizzard?
400
The chamber in an earthworm's digestive system that temporarily stores food.
What is crop?
400
The structures that control the blood pressure in an earthworm.
What are the aortic arches?
400
Starfish have this type of symmetry.
What is radial?
500
Organisms that have both male and female reproductive structures in the same body are called ___________.
What is hermaphroditic?
500
Earthworms carry on respiration through this part of their body.
What is skin?
500
The phylum the brown tube sponge is part of.
What is porifera?
500
A tube that transports gases inside insects.
What is trachea?
500
Spicules, collar cells, and flagella are all parts of __________.
What is sponges?