Chapter 33 Invertebrates Flashcards
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| 312389565 | Poriferia | Sponges; no tissue; oldest animal group | |
| 312389566 | Cnidaria | "Jelly Fish"; uses stingers to capture its prey; has one opening; dipoblastic | |
| 312389567 | Lophotrochozoa | Invertebrates. Large clade that can include flatworms, rotifers, ectoproacts, brachopodia, molluscs and amelids | |
| 312389568 | Platyhelminth | a group that includes parasites; no body cavity; "aceolomates"; flatworms | |
| 312389569 | Planarians | a free-living flatworm found in ponds; hermaphrodites; light sensitive eyespots; exchange gases; one opening | |
| 312389570 | Tapeworm | a parasitic flatworm; like fungi it absorbs nutrients from hosts, usually intestines; can sexually reproduce | |
| 312401569 | Rotifers | tiny animals live in water; key feature is the crown of cilia; reproduces by parthogenesis; are pseudcocholmoate; phylum | |
| 312401570 | Lophorates | group with crowned cilia tentacels for feeding; true coleomates | |
| 312401571 | Ectospocts | sessile (don't move), colonial reef builders; exoskeletons; | |
| 312401572 | Brachiopods | hinged, mollusc like species, has a foot; | |
| 312401573 | Molluscs | soft-bodied species but can have a shell; foot, mantle and visceral mass are 3 key features, includes slugs, snails, oysters; a phyla under Lopohrates | |
| 312401574 | Radula | teeth used for feeding | |
| 312401575 | Chitons | molluses with shell but with no plate; a class of molluses; | |
| 312401576 | Gastropods | class of molluses, 3/4 of all species; eyes, anus and foot. snails, slugs | |
| 312401577 | Bivales | a class of molluses similar to gastropod, but don't move. no head, no radula | |
| 312401578 | Cephalpods | a clade of molluses; distinct with head; complex brain; sensory organs; key is closed circulatory and predatorss; squids, octupuses | |
| 312401579 | Squid | an example of a cephalpod | |
| 312401580 | Snail or Slug | an example of a gastropod | |
| 312401581 | Reef builder | an example of a ectospots | |
| 318407604 | Arthropods | A phylum of organisms that have jointed appendages, an chitin exoskeleton, bilateral symmetry, and reproduce sexually; insects, arachnids, millipedes and centipedes, and crustaceans | |
| 318407605 | Amniotes | birds, mammals, reptiles- uterus or | |
| 319893016 | parthogenesis | reproduction that consists of only females that produce more females from unfertilized eggs | |
| 319893017 | Annelids | a phylum of organisms that are segmented worms; coelomates; earthworms | |
| 319893018 | Parapodia | almost feet, pad-like | |
| 319893019 | Chaete | bristles made of chitin; some have few hairs and are long (ogliahetaes); some have many hairs (polychaete) | |
| 319893020 | Earthworms | hermaphordites that cross fertilize (exchange sperm); have a nervous system | |
| 319893021 | Ecdosozoans | super group; includes annelids and arthropods. key features are cuticle (tough coat) and molting, shedding of the cuticle as a new larger one is produced | |
| 319893022 | Metamorphosis | development in an animal larva that transforms it into a sexually mature adult | |
| 319893023 | Larva | sexually immature and morphologically different than adult | |
| 319893024 | Nematodes | a phylum of non-segmented worms; pseudocolomates; lack circulatory system; produce sexually; found in soil | |
| 319893025 | Caenorabatis elegans | model organism; transparent, good for microscopy; 1000 cells and 20,000 genes; easy to work with and can be frozen | |
| 319893026 | Genoe sequence, C. Elegans | 1st complete genome sequenced of a multicellular eukaryote | |
| 319893027 | GFP | a method to study protein localization | |
| 319893028 | RNAi | a method to study gene function; C. elegans can be fed with bacteria expressing a complementary RNA | |
| 319898602 | Arthropod Characteristics | key features for this phylum include head, thorax and abdomen; jointed appendages; polymer made of chitin (NAG); they molt; open circulatory system | |
| 319898603 | Open Circulatory System | a system where hemolymph (blood) is pumped through the heart and circulates the body with nutrients and oxygen; animals must move because there is no pressure | |
| 319898604 | Chelicerates | a subphyla of arthropods; use chelicarea to feed (claw like hinges) | |
| 319898605 | Arachnids | a subphyla of arthropods; cephalthorax with six appendages | |
| 319898606 | Cephalthorax | head and thorax | |
| 319898607 | Insects | a subphyla of arthropods; reproduce sexually; recognize member species through smell, colors and or sounds; help pollinate; cam carry disease | |
| 319898608 | Ability to Fly | a key success for insects; escape predators, find food, move to habitiates; two pairs of wings from doras sides of thorax | |
| 319898609 | Incomplete Metamorphosis | a stage where the larvae resemble adults but are smaller and without wings | |
| 319898610 | Complete Metamorphosis | larval stage looks entirely different from adult | |
| 319898611 | Phylogeny of Insects | more than 30 orders; huge number | |
| 319898612 | Drosophilia melanogaster | a model organism; fruit fly, vinegar fly; 14,00 genes, small and used in developmental genetic | |
| 319898613 | Hox genes | control the identity of body parts; can be mutated in throughout development | |
| 319898614 | Deutrosomes | Radial cleavage, anus develops from blastospore | |
| 319898615 | Echinoderms | a phylum with spiny skin; slow moving; a duetrosome | |
| 319898616 | Chordata | a phylum with ollow dorsal nerve cord, notochord, pharyngeal slits, endostyle, post-anal tail; still inverterbates and now deutrosomes |