Chapter 15 Flashcards
Are animals unicellular?
no
No invertebrate has
a backbone
Phylum Porifera includes the
brown tube sponge
is nematocyst part of a sponge?
no
The digestive chamber of a jellyfish is called its ________
gastrovascular cavity
The corals that build coral reefs are _______ corals
hard corals
What kind of symmetry do flatworms have?
bilateral
The phylum which includes flatworms is _____
Platyhelminthes
A collection of nervous tissue, called a “simple brain” in some organisms, is a _______
ganglion
Which structure(s) does the planarian use to remove wastes from its body?
flame cells and excretory pores
Why does a tapeworm need hooks and suckers on its head?
to hold onto its host’s digestive tract
What characteristics distinguishes phylum Annelida from the other worm phyla?
segmented body
In a closed circulatory system, blood flows along what route? (Hint: start with veins)
veins–>heart–>arteries–>capillaries–>veins
The structure in the earthworm which collect wastes are the __________
excretory tubules
The characteristic that gives the sponge phylum its name
pores
