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| 6 characteristics of Animals |
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1- multicelled
2-heterotrophic
3-motile phase
4-majority sexually reproduce
5-embryonic development
6-aerobic
7-most form tissues and organs |
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| sheetlike array of cells that lines a body cavity |
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| covering that protects from the outside world |
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| lining of the gut: stomach where food is digested |
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| Matrix in which protein fibers and living cells are embedded (i.e. skeleton) |
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| body parts arranged around their main axis; (i.e. wheel) for example: hydra-water; adapted to capture food |
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| equivalent left and right halves with an undersie and upperside (front is different from back) |
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| nerve development as a result of the increasing concentration of sensory structures & nerve cells at the "leading" end (evolved into distinct head) |
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| sac protecting into the body or tube; where food is digested and absorbed |
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| incomplete digestive system |
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| saclike gut; opening serves as both mouth and anus |
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| complete digestive system |
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| tubular gut; broken and absorbed food - in: mouth, out: anus |
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| repeated body units (worms, lobster) |
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| "fitler feeders",have no symmetry (asymetric), no organs, no tissues,collar/amoeboid cells, silica, reproduce asexually, microvilli |
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| one of the flagellated cells lining the inner cavity of a sponge |
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| process and digest the food |
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| used for protection; tough protein fibers and spicules of calcium carbonate and SILICA that stiffen body to become glasslike (deter predators). |
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| take in food from the water by the use of flagella and microvilli |
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| catches food and brings it into cell |
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| radial, nematocysts, tissues (gastro, epidermis) but no organs, nerve net, (jellyfish, sea anemones) |
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| capsules with barbed-like threads that have toxins and inflicts pain |
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| cnidarian have what type of gut? |
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| incomplete gut - has enzymes that break down prey; mouth - takes in prey but then spits it out. |
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| nerve cells threading through cnidarian epithelia (simple nervous system) |
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| community of cells carry out 1 or more tasks |
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| structural untis of two or more tissues that develop in porportion and patterns to carry out specific tasks |
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| two or more organs interacting physically, chemically, or both as they carry out specialized tasks |
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(planaria, flukes, tapeworms)
1st to have an organ, pharynx, incomplete digestive system, protonephedria |
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| tubelike - used for feeding: incomplete gut |
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| system of tiny tubes that controls water and solute volume |
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| hermaphrodites = reproduce asexually |
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| parasitic flatworms have no... |
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| digestive system - they absorb the nutrients directly from host |
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| (earthworms, leeches) cuticle, segmented, complete digestive system, hydrostatic skeleton, nephridia, rudimentary brain, multiple hearts, and closed circulatory systems |
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| tough flexible, protective, doesn't prevent water loss |
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| Annelids can consume their own... |
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| weight of decaying matter each day |
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| closed circulatory system |
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| multiple hearts (5), has vessels to pump |
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| nerves that serve as line of cimmunication |
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| fluids actually drain into small bladder |
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| lengthening and shortening of muscles |
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| many organs in small body, complete digestive sytem, protonephridia, many have eyes, nerve cells, no circulatory/respiratory system, not many males |
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| "belly foots"(slugs, snails), bivalves, cephalopods,bilateral, mantle, radula, respiratory organs (leaflike), gastropod embryo (anus by mouth), complete digestive system |
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| "belly foots" foot spreads out as crawls |
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| active predators of the sea, largest brain, complex behavior (nerve signals from brain), jet propulsion, mouth, closed circulatory system= heart and 2 accessory |
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| skirt-like extension of body mass that drapes back on itself |
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| tongue like, toothed=guts its food |
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| largest brain, jet propulsion (siphon), closed circulatory system; multiple hearts. |
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| "nematods", cuticle=sheds molt, complete digestive system, geared for porduction=packed w/ reproductive organs, parasites (Ascaris-intestinal parasite) |
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| "jointed legs", hardened exoskeleton, jointed appendages, fused/modified segments, respiratory structures, specialized development (metamorphosis), division of labor |
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| hardened exoskeleton, complete gut, open circulatory system |
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| "chelicerates", open circulatory system, respiratory organ, pedipalps, chelicerae, spinners for web |
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| inflicts wounds and discharges venom |
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| "insects of the sea", segmented, head 2 antennae mandibles, appendages evolved into claws, metamorphosis, |
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| metamorphasis-crustaceans, have how many stages? |
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| segmented, "scavengers" decomposers=decaying plant matter, |
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| predators, agressive, flattened body |
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| winged, complete digestive system, Malpighain tubules, metamorphosis |
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| insects have how many body parts, name. |
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| foregut, midgut(digestion), hindgut(water absorbs) |
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| small tubes that with the midgut remains waste and ion concentration of bodily fluids |
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| (starfish, urchin)-radial symmetry, no brain, tube feet, formidable feeding mouth, bottom dwellers |
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| muscular structure=sucker that allows them to attach to surface or use them to walk (can regrow arm!) |
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