Term
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Definition
| spicules and protein in a gelatinous matrix act as a framework for thousands of collar cells with a sheet of flattened non flagellated cells attached- asymmetrical. |
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Term
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Definition
| flagellated cells draw water through the pores where the cells filter food out of the water & pass it on to the amoeboid cells where it is processed. |
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Term
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Definition
| mostly shallow tropical seas, some in deep sea trenches, icy antarctic seas, & fresh water. |
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Term
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Definition
| protein fibers & spicules of calcium carbonate or silica stiffen so the predator fells like it is eating glass splinters- some species secrete a slimy coating over the body while others make toxins or smelly compounds. |
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Term
| sponges- reproduction (asexually). |
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Definition
| reproduce by budding or fragmentation. small buds break off & grow into new sponges- some freshwater species make gemmules which is an encased clump of cells in a hardened coat that can survive until improved conditions. |
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Term
| sponges- reproduction (sexually). |
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Definition
| some release sperm directly into the water where currents will carry them to another sponge. when eggs of the same species are fertilized, they are kept inside the body until the zygote develops unto a ciliated larva which swims around before settling down. |
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Term
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Definition
| radial & tentacles with two tissue layers but no internal organs. they also have sensory sensory cells that contain nematocysts. contain a saclike gut in both medusa & polyp. medusae which look like bells or umbrellas move through that water with tentacles. polyps form external or internal skeletons which a tubular & attached to a substrate. the epidermis overs the surface of the body & contains many nematocysts while the gastrodermis lines the gut cavity which has gland cells that secrete digestive enzymes. a nerve net threads through th two epithelia & controls the contractile fragments in the epithelial cells which moves the body by the contractile cells working against the mesoglea to squeeze water out & drive it forward. |
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Term
| cniderians- reproduction. |
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Definition
| gonads form only in the polyps which forms a medusae & when two medusa meet, the egg get fertilized & the zygote forms into a planula which grows into a polyp. |
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Term
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Definition
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Term
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Definition
| nematocysts- thick walled defense mechanism that form in the sensory cells. when something touches the capsule's trigger (on the surface of the epidermis), the lid opens & the thread puts stinging barbs or toxins into whatever it hits. |
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Term
| platyhelminthes- body plan. |
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Definition
| three primary tissue layers (ectoderm, endoderm, & mesoderm.) bilateral & cehpalized animals with no coelom. ganglia of nerves for a brain with a pair of nerve cords that have lateral branching. tiny tubes (protonephridia) condom water & solute levels. segmented with proglottids. |
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Term
| platyhelminthes.- feeding. |
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Definition
| requires a host. latch on to the intestine with a scolex & diffuses nutrients across the body wall. |
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Term
| platyhelminthes- habitats. |
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Definition
| a host when mature & aquatic for its larvae along with a snail as it's intermediate host. |
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Term
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Definition
| segmented, bilateral. muscles, blood vessels, nerves & other organs within each coelomic segment. Digestive system that runs through the entire body. closed circulatory system & many hearts. brain with two nerve cords for communication that extends down the body. |
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Term
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Definition
| muscular pharynx squeezes moist, detritus soil down the gut. |
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Term
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Definition
| bilateral & cephalized with a fake coelom. complete digestive system, protonephridia controls water & solutes, ganglion at the head controls body activity, some have eyes. |
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Term
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Definition
| bilateral, soft bodies with a reduced coelom. They have a mantle which us a skirt like extension of the body mass. those with a head have tentacles & eyes. many have a shell. many have a radula for feeding & a type of gill for respiration. |
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Term
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Definition
| use a radula to feed on prey. |
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Term
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Definition
| Were the superme predators of the seas. However, they when the competition for prey caused them to lose their shells & become more active. jet propulsion for locomotion. |
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Term
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Definition
| cylindrical body with bilateral features, tapered end, a complete gut & a false coelom. |
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Term
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Definition
| most are free living decomposers. |
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Term
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Definition
| free living & some can be parasitic ghat feed on blood & other tissues $ withdraw nutrients. |
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Term
| roundworms- reproduction. |
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Definition
| Females can release a thousand eggs that release through it's feces where it then enters a host. |
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Term
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Definition
| bilateral animals with a hardened jointe exoskeleton & specialized appendages. complete gut, reduced coelom, & an open circulatory. exoskeleton molt after each growth spurt. |
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Term
| arthropods- metamorphosis. |
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Definition
| when a juvinile changes into adult form & the body plan changes. |
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Term
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Definition
| Two eyes, antennae, first leg, five walking legs, fused segments on cephalothorax, segmented abdomen, swimmerets & tail. |
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Term
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Definition
| strong claws are used to collect food, Hawkins & foodhandling appendages. |
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Term
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Definition
| nearly all in marine habitats. |
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Term
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Definition
| Large claws intimidate other animals & are used to hurt predators. |
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Term
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Definition
| multicelled heterotrophs that ingest other organisms or a portion of them. most are motile. reproduce either a asexually or sexually. make ATP for energy by aerobic reputations. |
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Term
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Definition
| a sheetlike array of cells that covers the body surface or lines an inner cavity or a tube. |
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Term
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Definition
| lines the gut. Where food is digested & absorbed. |
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Term
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Definition
| most with a matrix in which living cells & preteen fibers are embedded. |
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Term
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Definition
| most with a matrix in which living cells & preteen fibers are embedded. |
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Term
| ectoderm, endoderm, & mesoderm. |
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Definition
| germ layers. ecto- the outer part of the epidermis & nervous system. endo- the start if the gut's inner lining & organs. meso- gives rise to many internal organs. |
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