Describe the reproductive process of fragmentation
When an organism is broken into pieces through predation or natural processes then as long as all functions can be performed by each piece they will grow
Describe the function of the osculum
To expel waste
Name an example from the class scyphozoa
Moon jellyfish lions mane jellyfish
Most animals have this type of body symmetry
Bilateral
Describe the function of spicules
They act as the internal support or structure.
Members of the class anthozoa are different from other cnidaria because they don't typically go through this syage in the cnidarian life cycle.
Medusa
Members of these groups were likely some of the first predators
Marine worms
List the taxonomic order for classification
Domain kingdom phylum class
Marine flatworms have this type of symmetry
Bilateral
Members of this phylum are characterized by complex multi stage life cycles
Cnidaria
Descibe the function of a cnidocyte
Stinging cells to capture and immobilize prey
Cnidarians have this type of symmetry
Radial
Describe the function of the ostia
Pores that allow water into the sponge
Why is it an advantage for sponges to have larger interior surface areas
They can absorb more nutrients and grow larger because collar cells are found only on interior surfaces.
Members of this phylum have no true tissues but instead groups of specialized cells.
Porifera
Why is radial symmetry an advantage for sessile organisms
They are able to feed on all sides instead of just one.
Describe the function of collar cells
To create current into the sponge and to catch and absorb nutrients
Describe the function of the spongoceal
Large cavity in sponges lined with collar cells to absorb nutrients
The two main stages in the cnidarian life cycle are
Polyp and medusa
Spicules can be made of these three materials
Spongin silica and calcium carbonate
Describe the reproductive process of budding
A smaller version of the organism grows on the parent. When it reaches a large enough size it falls off becoming a separate organism.
What are some advantages of bilateral symmetry
Streamlined movement and stereo senses
What is the major difference between the class cubozoa and the class scyphozoa
Scyphozoa have a rounded or bell shaped bell cubozoans have a box or cube shaped bell
Members of this group play an important role in nutrient cycles in the ocean
Marine worms
Name an example from the class anthozoa
Corals anemones
Name an example of the class hydrozoa
Man of war hydra
Name an example from the class cubozoa
Box jellyfish irukandji jellyfish
Describe the function of the spongoceal
Large cavity in sponges lined with collar cells to absorb nutrients
Sponges have this type of symmetry
Asymmetry
Name the three body layers of cnidarians
Endoderm ectoderm meoglea
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