Test 3-Class Arachnida Flashcards
1
Q
Appendages
A
8 legs (jointed) no wings or antennae
2
Q
Arach-
A
spider
3
Q
Environment or Habitat
A
most terrestrial
some freshwater
4
Q
Respiration
A
book lungs
5
Q
Eating
A
predator to other insects and invertebrates except mites (who eat almost anything)
6
Q
Common representatives
A
spiders, scorpions, mites, ticks, harvestmen, solpugids
7
Q
Eyes
A
simple-1 lens, used for focus
compound- 1+ lens, detects movement
8
Q
Life Cycle
A
most are oviparous
viviparous (scorpions)
egg->larva->nymph->adult->lay eggs
male creates packet of sperm and give it to female spider
9
Q
Exoskeleton
A
must shed in order to grow
10
Q
Mode of living
A
free-living
11
Q
Importance to humans
A
predators to many insects, keep the population lower
ticks can carry disease such as Lyme disease
12
Q
Subgroups
A
spiders
scorpions
Daddy long legs
tics and mites
13
Q
Spiders
A
predator males are smaller inject venom to disable prey 8 eyes black widow, brown recluse
