Chapter 16 Flashcards
What does the octopus use to move quickly through the water?
siphon
What part of the clam’s body manufactures the materials for the shell?
mantle
Clams use their muscular feet to
move themselves through the sand
Clams obtain food by
filtering it from the water
Does a clam have an exoskeleton?
no
Which phylum has the most animal species?
Arthropoda
Are tentacles a characteristic of insects?
no
Name three characteristics of insects
- six legs
- compound eyes
- exoskeleton
Since the grasshopper has an open circulatory system, it does not have
capillaries
A grasshopper develops by ___________ metamorphosis.
incomplete
A starfish leg/arm is called a _________
ray
After it has opened a clam’s shell, a starfish
pushes its stomach into the clam
Structures on an octopus’s arms that help it grasp items_________
suction disks
Part of an octopus’s jet propulsion system and of a clam’s feeding system__________
siphon
Describes an animal having two shells hinged together
bivalve
Special eyes found on most insects ________
compound eyes
Arthropod organs used to detect smells and to feel its surrounding ____________
antennae
body part that can be regrown by starfish
ray
True or False
Phylum Mollusca has relatively few species compared to the other animal phyla
False
True or False
An octopus can change its color
True
True or False
The blood of grasshoppers, like that of most insects, is red
False
True or False
Insects can sometimes be killed by spraying them with oils or dusts that cover or clot their spiracles
True
True or False
A maggot is the larval stage of the beetle
False
An arthropod’s muscles are attached to the inside of this ____________
exoskeleton
