Module #12: Phylum Arthropoda Flashcards Preview

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Flashcards in Module #12: Phylum Arthropoda Deck (18)
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1

Molt

To shed an old outer covering so that it can be replaced with a new one

2

Thorax

The body region between the head and the abdomen

3

Abdomen

The body region posterior to the thorax

4

Cephalothorax

A body region composed of the head and thorax fused together

5

Compound eye

An eye made of many lenses, each with a very limited scope

6

Simple eye

An eye with only one lens

7

Open circulatory system

A circulatory system that allows the blood to flow out of the blood vessels and into various body cavities so that the cells are in direct contact with the blood

8

Exoskeleton

A body covering, typically made of chitin, that provides support and protection

9

Statocyst

The organ of balance in a crustacean

10

Gonad

A general term for the organ that produces gametes

11

Compleat metamorphosis

Insect development consisting of four stages: egg, larva, pupa and adult

12

Incomplete metamorphosis

Insect development consisting of three stages: egg, nymph, and adult

13

The five common characteristics of Arthropoda

An exoskeleton, body segments, jointed appendages, a ventral nervous system, an open circulatory system.

14

What five characteristics set arachnids apart from other Arthropods?

Four pairs of walking legs, a cephalothorax instead of separate head and thorax, usually have four pairs of simple eyes, no antennae, respiration done through organs known as "book lungs"

15

What are the three basic types of webs that spiders spin?

Sheet webs, tangle webs, and orb webs

16

What four characteristics set insects apart from other Arthropods?

Three pairs of walking legs (or jumping), usually have wings at some stage of life, one pair of antennae, three segments: head thorax and abdomen

17

What are the four types of wings?

Membranous wings, scaled wings, leather like wings, horny wings

18

What are some major orders of insects?

Lepidoptera: butterflies/moths, Hymenoptera: ants/bees/wasps, Coleoptera: beetles, Diptera: flies/gnats/Mosquitos, Orthoptera: grasshoppers/crickets