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Inverts test
| Term | Definition |
|---|---|
| what ratio of animals are arthropods | 8/10 animals |
| literal meaning of 'arthropod' | Jointed feet |
| traits of arthropods | open circulatory system, complete digestive tract, eucoelomates with a reduced coelom |
| How old are arthropods? | 540 Million years |
| what are exoskeletons of arthropods made of | chitin and scleratin |
| uiramous legs | single-branched legs |
| biramous legs | Two-branched legs unique to crustaceans. |
| Mandibles | chewing mouthparts |
| Chelicerae | injecting mouthparts |
| traits of class meristomata | book gills, telson |
| traits of class Arachnida | two body sections, eight legs, book lungs |
| what are the most venemous spiders? | black widow, brown recluse, Australian funnelweb, brazilian wandering spider |
| what behaviors in spiders does a crown-shaped eye formation indicate? | web-hunters |
| what behaviors in spiders does a forward-facing eye formation indicate? | ambush predators |
| how many silk glands do spiders have? | at least 7 |
| how many times has carcinization appeared within arthopods? | 5 times |
| do crustaceans posess uniramous or biramous appendages | biramous |
| What generational body form change is exhibited by daphnia when a predator is introduced/removed from an environment? | cyclomorphis |
| how many legs per segment does subphylum miryapoda, class diplopoda posess? | 4 |
| how many legs per segment does subphylum miriapoda, class chelipoda posess? | 2 |
| what precent of biomass do all social insects fill? | 20% |
| what are traits of insects? | 3 body segments, variations of the mandible, labrum and maxilla, antennae |
| what precent of insects possess eyes? | 85% |
| what species of insect incorporates Crotalaria plant toxins into its own body tissues and gametes? | Utetheisa moths |
| What nervous system do insects possess? | a brain, a ventral nerve cord and a ganglia for each segment |
| ametabolous development | no metamorphosis |
| Hemimetabolous development | incomplete metamorphosis |
| Holometabolous development | complete metamorphosis |
| what fractions of genes are shared between full sister/full sister bees? | 3/4 |
| what fractions of genes are shared between full sister/half-brother bees? | 1/4 |
| are female bees haploid or diploid? | diploid |
| are male bees haploid or diploid? | haploid |
| what chemical is used by ants as a predator deterrent? | formic acid |
| what invasive species of ants indirectly alters the african savannah? | big-headed ants |
| what is the structure created by African army ants, out of their own bodies, called? | bivouac |
| what is a behavior unique to african weaver ants? | creation of 'ant ladders' or 'ant rafts' |
| what chemicals prompt metamorphosis? | prothoractropic hormone and ecdysone |
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