Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
22 Cards in this Set
- Front
- Back
|
Cnidaria |
Phylum: corals, sea anemones, and jellyfish |
|
|
Epidermis |
Outer layer; has cells that aid in capturing food and cells that secrete mucus |
|
|
Endoderm |
Inner layer; cells that produce digestive enzymes and break up food particles |
|
|
Mesoglea |
Jelly-like material between the inner and outer layers |
|
|
Gastrovascular cavity |
central cavity; extends into the hollow tentacles |
|
|
Polyp |
Body shaped like a hollow cylinder that opens and closes at the top |
|
|
Medusa |
Body shaped like an umbrella; mouth and tentacles hang down in the water |
|
|
Radial Symmetry |
cylinder or an umbrella from a central axis |
|
|
Cnidocyte |
stinging cells |
|
|
Nematocyst |
long, coiled, tubular harpoon-like structure |
|
|
Plankton |
organisms that can not swim against a current |
|
|
Nerve net |
fiber connecting that send implies to muscle cells |
|
|
Mechanoreception |
the ability to respond to a stimulus of touch or pressure |
|
|
Chemoreception |
the ability to respond to chemical stimuli |
|
|
Photoreception |
the ability respond to changes in light intensity |
|
|
Sexual reproduction |
Sperm floats into egg of another jellyfish and fertilizes the egg |
|
|
Fertilization |
release both eggs and sperm into the water;sperm floats into the ovary and fertilization happens inside the female |
|
|
Larva |
new organism that grows from the fertilization` |
|
|
Cilia |
small hairlike structures that move i along by beating back and forth |
|
|
Asexual reproduction |
reproduction without eggs and sperm |
|
|
Budding |
cells on the side of the parent begin to bulge out and form a new organism |
|
|
Regeneration |
replace lost or damage parts |
