Subphylum Arachnida Flashcards

1
Q

Kim. Coelom.

A

Triploblast. Eucoelomat

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2
Q

Repr.

A

Gonochoristisk (pedipalper/nøgle + epigyn/lås) indre befrugtning.

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3
Q

Ekskr.

A

Malpighisk rør – blindt på begge ender, ligger i hemocoel

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4
Q

Respiration

A

Boglunger. Hjerte med ostier.

Tracheae: forgrenet tubule, der tudmunder direkte på vævet – blod er altså ikke involveret i respirationen

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5
Q

Vedhæng

A

Chelicerae, pedipalper (1. Par gåben), 4 andre gå ben.

På abdomen: spirakler (indgang til boglunger/tracheae, kan lukkes)

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