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Phylum Arthropoda

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Todd Martin

on 24 October 2016

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Transcript of Phylum Arthropoda

Class Insecta
Name means "same wing". Identicle wings fold over the body like a tent.
Name means "sheathed wing"
nymph - adult
Dragonflies and Damselflies
90% of the species in the Animal Kingdom are Insects
1 in 5 Animals is a Beetle
Piercing, sucking, sponging mouth parts.
Butterflies and Moths
name means "2 wings", but they have a back set of modified wings that are stubs; used for balance during flight...
Reduced antennae on males
mouth made of 2 jaws
Name means straight-winged
Complete metamorophesis
Adults have chewing mouth parts toward tip of the beak
Sucking and piercing mouth parts
Usually small, sometimes transparent
"Bugs" - aphids, cicadas, leaf-hoppers, tree-hoppers
The name means "tooth" due to a toothed mandible
2 Pairs of transparent wings
Insect-eaters. Live by H2O
Incomplete metamorphesis
Name means to siphon without wings
Complete Metamorphesis
Chewing to Piercing mouthparts
Live a month without food/blood
Very jumpy, long back legs
Complete metamorphesis
Name means "scaled wings"
174,000 species, only 18,000 are butterflies
3 stages; nymph (1-3 yrs in streams), subimago stage (develop wings), imago stage (mating for 24 hours, then die)
Phylum Arthropoda
75% of the weight of the Animal Kingdom is Arthropods
Subphylum Chelicerata
"Chelicera" means horned-tooth. They have a pair of horn-shaped pre-mouth parts...
Horseshoe Crabs, Spiders, Scorpions, and Mites are in this group...
Horseshoe Crabs are not true crabs...we have an interesting use for them:
Subphylum Crustacea
Characteried by biramous legs...
Class Malacostraca contains:
Broken into sub-phyla, classes, and orders...
Class Arachnida: Spiders
Class Merostomata: Horseshoe Crabs
Subphylum Uniramia
Name means "single branch"; their legs do not have a split in them like the Crustaceans.
Over 65,000 species; range in size from microscopic to 10-ft in diameter.
Over 10.8 million tons of them are consumed by humans each year...
Class Diplopoda: Millipedes
Class Chilopoda: Centipedes
And then on to the largest Class in the Animal Kingdom...
They represent 1/2 of all living organisms
There are over 6,000,000 different species of them...
Know what it is???
Many Orders, including...
Honeybees, Wasps, ants
Complex communication through dances is seen here...
Gender of offspring is determined by the Queen of the colony. If she lays unfertilized eggs, they become male. If she allows fertilization, they become females. (Males therefore have half the chromosomes that females have). If the developing females are fed 'royal-jelly' (a protein secretion) for more than 3 days, they develop into new Queens...
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