Invertebrates Flashcards
1
Q
What are the characteristics of Nematodes (Nematoda)?
A
- worms
- taper at mouth &anus (kuželovitý)
- no definite head or tail (you can’t tell apart their head and ass)
- some are parasites
- e.g. ascarids (sth like tasemnice)
2
Q
What are the characteristics of Annelids (Annelida)?
A
- worms
- segmented
- some have bristles (štětiny) for movement
- most live in soil
- e.g. earthworm
3
Q
What are the characteristics of Mollusks (Mollusca)?
A
- soft bodied
- no segments
- muscular ‘foot’
- most have a shell / 2 shells
- e.g. snail, octupus, squid…
4
Q
What are the characteristics of Arthropoda?
A
- largest phylum in the animal kingdom
- main classes: crustacea, myriapoda, insecta, arachnids
- segmented bodies
- exoskeleton
- jointed legs
5
Q
Characterize Crustacea
A
- class in the Arthropoda phylum
- body divided into cephalothorax and abdomen
- hard shell
- 2 pairs of antennae (tykadla)
- gills (žábry)
- lobsters
- e.g. lobsters, shrimp, crayfish…
6
Q
Characterize Myriapoda
A
- long bodies
- many segments
- many pairs of legs
- centipedes and milipedes
7
Q
Characterize Insecta
A
- 3 body segments
- 3 pair of legs
- 1 pair of antennae
- many have 2 pairs of wings
- largest group of Arth.
- colonized most habitats
- e.g. flies, ticks, spiders…
8
Q
Characterize Arachnids
A
- cephalothorax and abdomen
- four pairs of legs
- no wings/antennae
- simple, not compound eyes
- able to weave webs with their spinnerets
- spiders, scorpions, mites…
