Unit 10 Flashcards
Animals
Both have a simple to complex organisms in their Kingdoms
Comparison
Specialized tissues; simple ones do not
Complex Kingdoms (Comparison)
Both feed, respire, exercise, grow, reproduce and are sensitive to their environment
Comparison
Plants have cell walls for protection and support and a cell membrane ; Animals just have a cell membrane
Contrast
Majority of animals are heterotrophic
Contrast
Animals inhale oxygen and give off CO2
Contrast
Muscle cells for movement and nerve cells from conducting impulses
Complex Animals (Contrast)
Body parts radiate from center
Radial Symmetry
2 cuts (horizontal & vertical) produce 2 halves that are mirror images
Radial Symmetry
1 cut (right and left parts)
Bilateral Symmetry
Head
Anterior
Tail
Posterior
Back
Dorsal
Bottom
Ventral
Sponges
Porifera
simplest of all animals
Sponges (Porifera)
No muscles, nerves, tissues
Body full of spores
Some radially symmetric; most no body shape
Sponges (Porifera)
sweep water through sponge’s body and trap food in mucus & phagocytize
Choanocytes
produce skeletal fibers (spongin) for structure
Amoebacytes
Large opening at top of sponge
Water exits this opening
Osculum
Adults are anchored in place
Sessile
Hrydas, Sea Anenomes, Corals, Jellyfish
Cnidaria
Hydras & Sea Anenomes
Polyp (stationary)
Marine Jellyfish
Medusa (mobile)
Stinging cells for defense and capturing prey
Cnidocytes
Flatworms
Platyhelminthes
Bilateral Symmetry and 3 tissue layers
Flatworms (Platyhelminthes)
live on underside of rocks
Planarians
Reproductive parts- entire length of bady
Flukes- parasites
Flatworms
Tapeworms
hooks and suckers
hooks onto intestinal tract
Scolex
Breaks off in feces or embeds in muscle
Posterior end full of ripe eggs
Roundworms
Nemotodes
