Chapter 12 Test Flashcards
No invertebrate has a
backbone
This phylum has the most animal species
Arthropoda
Flatworms have this type of symmetry
bilateral
This characteristic distinguishes earthworms from worms in other phyla
segmened body
Octopus use these to move quickly through the water
siphon
The tiny bristles that an earthworm uses for movement
setae
Clams obtain food by
filtering it from the water
The chamber in an earthworm’s digestive system that temporarily stores food
crop
The chamber in an earthworm’s digestive system that grinds food during mechanical digestion
gizzard
Animals such as clams that have two shells hinged together
bivalves
Part of the body that sponges have
spicules and spongin
Arthropods have
exoskeletons
Animals
- are eukaryotic
- are consumers
- reproduce sexually
Some insecticides work by blogging the insect’s __________ so they can’t breathe
spiracles
Organisms that have both male and female reproductive structures in the same body
hermaphroditic
Earthworms have a __________ circulatory system
closed
Earthworms carry on respiration this way
through their skin
Brown tube sponge
Porifera
Honeybee
Arthropoda
Planarian
Platyhelminthes
Box Jellyfish
Cnidaria
Earthworm
Annelida
A type of skeleton similar to a water balloon
hydrostatic
A stinging cell of a hydra or jellyfish
nematocyst
The resting stage of insect development
pupa
A tube that transports gases inside insects
trachea
An outer opening of an insect’s gas exchange system
spiracle
A collection of nerve tissue, called a “simple brain”
ganglion
An insect’s life cycle, which includes changes in body form
metamorphosis
Structures that control blood pressure in an earthworm
aortic arches
