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
protein component of some sponge skeletons
spongin
a type of skeleton similar to a water balloon
hydrostatic
the outer tissue layer in a jellyfish
ectoderm
a stinging cell of a hydra or jellyfish
nematocyst
an animal in the same phylum as the jellyfish
coral
a nerve cell
neuron
a collection of nerve cells wrapped in a protective covering
nerve
Be able to label the following structures of a sponge:
- pore cell
- collar cell
- flagella
- spicule
use diagram on page 269 to study
Be able to label the following digestive system structures of earthworm:
- pharynx
- crop
- gizzard
- intestine
use diagram on page 279 to study
How many layers of tissue are found in a jellyfish?
two
Name one annelid other than the earthworm
leech, tubeworm, scale worm, sandworm, fireworm
What structures control the blood pressure in the earthworm?
aortic arches
True or False
Invertebrates do not have skeletons
False
True or False
Sponges are photosynthetic
False
True or False
A jellyfish has an extremely complicated nervous system with a complex brain
False
True or False
Jellyfish move by beating their tentacles
False
True or False
The thinness of a planarian allows its cells to exchange gases directly with the environment
True
True or False
A hookworm is a type of roundworm that is beneficial to cats, dogs, and farm animals
False
True or False
Some earthworms can grow as long as 3 m (9.8 ft)
True
