Bio exam 3

Body plans of jelly fist and sea anemones

Biradial & Radial Symmetry; acoelomate
Jelly Fish and Sea Anemones Tissue Layers

extoderm & endoderm
Who was the first group to have nerve systems

Cniderns (Jellyfish and Sea anemones)
Cniderns reproduction

budding
how to jellyfish capture food

nematocysts
What supports a jellyfish

Hydrostatic Skeleton
Polymorphism is

Polyp and medusa - two types of shapes in Cnidrens
Where does digestion occur in jellyfish

extracellular in gastorvascular cavity
what reproduces sexually, producing egg &
sperm gametes.

hermaphroditic medusa
Nerve Cells have many....

deadrites
mesoderm first appears in

flatworms
what do flatworms use for osmoregulation

nephridia
What holds things in place in a body cavity

mesentary
Advantages of an internal enviorment

Cells can differentiate, and become more specialized, and animals can live in more diverse habitats
disadvantages of internal enviorments

more complexity needed, more communication and intergration needed between all cells and systems
evolution of sensory organs developed at which end of a flatworm?

anterior
locomotion in flatworms is accomplished by

messodermal tissue which differentiates into muscules
heterotrophs cant synthesize from

inorganic compounds and eat food w carbon skeletons
heterotrophs digestion is dominateed by

intracellular digestion

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Card Set

Bio exam 3

Description

bio

Updated

2010-12-05T21:09:47Z

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