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characteristics of animals
heterotrophic
eukaryotic
multicellular
lack cell walls
ingestive eating
Types of symmetry
radial- body parts arranged circular
can be divided into two equal halves by any plane
ex) jellyfish or starfish
bilateral- body has right and left halves that are mirror images
only the sagittal plane bisects animal in 2 equal
halves.
ex) any animal with four legs
Porifera
Tissues- they are parazoa (meaning no tissues)
Symmetry- N/A
Feeding- Water comes in through pores, and flagella create a current. Choanocytes then filter nutrients out the water for the sponge. The excess water leaves through the osculum.
Cnidaria
Symmetry- they are radial (circular)
Body forms- Polyp and medusae
Feeding- They sting using cnidocytes to capture prey. Next, they deploy nematocysts which acts like a harpoon to pull the food into their gastrovascular cavity.
Hydrozoa
hydra
man of wars
Scyphozoa
sea Jellies
Anthozoa
sea anemones
corals