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Phylum Arthropoda: Insecta
Insecta is the most diverse group of organisms on the planet. Insecta represents over half of known living organisms found in nearly all environments.
Characteristics: head thorax abdomen three pairs jointed legs compound eyes.
Reproduction
Male testes produces sperm
female ovaries produce eggs
both gametes are haploid
both gametes are unicellular.
The circulatory system is in charge of moving nutrients and metabolic waste throughout the insect body.
Open circulatory system
blood spend most of its time flowing freely
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