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BSC1011-FGCU-Erdman
Exam III - Cont. Inverts, Verts, Animal Behavior and Ecology
11
Biology
Undergraduate 1
11/28/2009

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Cards

Term

Phylum Arthropoda

Who is this?

What habitats do they inhabit?

 

Definition

"Jointed foot"

 

Inhabit marine, fresh, land, air, etc!

Term
What are the common features of Phylum Arthropoda
Definition
1. Segmented body w/ regional specialization
2. body segments w. pairs of articulated appendages
3. Exoskeleton made of chitin.
4. Open circulatory system.
5. specialized gas exchange organs
Term
T/F.. all arthropods molt?
Definition
True
Term
What type of growth do arthropods go through?
Definition
Descrete growth via exdysis (molting)
Term
Specialized gas exchange organs of arthropods aid in what?
Definition
The diffusion of O2/CO2 in spite of the impermeable exoskeleton.
Term
T/F...although very different, all arthropods are a variation of a basic theme.
Definition
True
Term
Subphyla chiliceriformes... who is this?
Definition
Horseshoe crabs, spiders, scorpions, mites.. etc
Term
Common features of subphyla chileceriformes.
Definition
chilecera: grinding piercing jaws
2 part body: cephalothorax and abdomen
no antennae
6 pairs of appendages only on cephalothorax
chelicera, pedipalps, 4 pairs of walking legs
Term
Most chelicerates are arachnids.. what are these?
Definition
spiders, scorpions, ticks and mites.
Term
T/F.... scorpions are the most ancient terrestrial artropods
Definition
True!
Term
The pincer on a scorpion is just a modified... what?
Definition
pedipalp
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