Porifera
Sponges are composed of Spongin, which is a flexible, fibrous protein. What other structure makes up the body of sponges?
Spicules
Sponges exchange gases through this simple process.
Diffusion
All organisms in the phylum Cnidaria have this which is a defense mechanism/or used to capture prey.
Cnidocyte
In sponges water flows in through...
the ostia
What characteristic from our cladogram do both Porifera and Cnidaria have in common?
multicellular
What type of body symmetry do sponges displayed?
Asymmetric body symmetry
Stinging cells launch a venomous harpoon called a...
nematocyst
In Cnidaria morphology what swims freely?
Medusa
In sponges, water flows out through..
This type of symmetry describes organisms that show no consistent body pattern at all.
Asymmetry
Jellyfish use this pulsing motion for locomotion.
Jet propulsion
The two main cnidarian body forms.
Polyp and Medusa
What is are the two types of tissues located in phylum Cnidaria?
ectoderm (epidermis) and endoderm (gastrodermis)
Sponges are ___________ feeders
Filter
This symmetry divides an organism into mirror-image left and right halves.
bilateral
In sponges life cycle 1._________ is free swimming but 2._________ are sessile (immobile)
1. Larvae (planula)
2. Adults
Food enters through the 1. ___________ and exits through the 2. _____________
Oralaboral
The free-swimming, ciliated
stage in sponge
reproduction
Larva
Which class of Cnidarian includes sea anemone?
Class Anthozoa
This symmetry radiates from a central point, common in cnidarians
radial
The gelatinous layer between the epidermis and gastrodermis.
Mesoglea
Which structure secretes digestive enzymes for Cnidarians?
Gastrodermis
What is two environmental stimuli that a Cnidarian can respond to?
1. light 2. chemicals 3. gravity 4. touch
This term describes an animal attached to a surface for its entire adult life.
sessile
Sea stars eventually exhibit this five-part body plan.
Pentraradial symmetry