Body systems in Phylum Cnidaria Flashcards
Which body system in Phylum Cnidaria is simply epidermis?
Integumentary system
The skeletal system in Phylum Cnidaria has what?
Hydrostatic skeleton (Mesoglea) Some hermatyptic
What is absent in Phylum Cnidaria?
A muscular system, but there are epitheliomuscular cells
And
Excretory system
The digestive system in Phylum Cnidaria includes:
An incomplete gut
Gastrodermis
Anthozoa with septae
What goes directly through the skin (integumentary system)?
The respiratory system process
The circulatory system is?
Diffusive
What are the sexual reproductive systems in Phylum Cnidaria?
Most species are dioecious
Few are monecious
Hydrozoa life cycle:
Gametes —-> zygote —-> Planula larva—-> growing polyp—->polyp—->hydra—->medusa
Class Scyphozoa life cycle
Gametes —-> zygote —-> Planula larva —-> Scyphostoma polyp —-> Stoblia —-> ephyra —-> medusa
Gametes —-> zygote —-> Planula larva —-> Scyphostoma polyp —-> Stoblia —-> ephyra —-> medusa
Life cycle of Scyphozoa
Gametes —-> zygote —-> Planula larva—-> growing polyp—->polyp—->hydra—->medusa
Life cycle of Class Hydrozoa
How does the sexual reproduction in Phylum Cnidaria happen?
Sexual reproduction is done by meclusae
List the asexual reproductive styles in Phylum Cnidaria?
Budding
Fragmentation (fission)
Regeneration (pedal laceration)
The nervous system includes what in Phylum Cnidaria?
Nerve Net
Statocyst
Ocellus (detects light and dark due by shadows)
Image forming eye (Class Cubozoa)
