Roundworms and Arthropods Flashcards
1
Q
Roundworm Phylum is what?
A
Nematoda
2
Q
What are some roundworm characteristics?
A
- unsegmented
- False body cavity
- Complete digestive tract
- Bilateral symmetry
- about 1m long under the microscope
- some free living + some terrestrial
3
Q
Examples of parasitic roundworms are?
A
- Pinworms: At night female worms migrate to anus to lay their eggs
- Intestinal Roundworm: infection of eating uncooked vegetables or putting soiled fingers in mouth
- Filarial worms: These worms live in the lymph system
4
Q
What is the arthropods Phylum name?
A
Arthropoda
5
Q
What are characteristics of arthropoda?
A
- Bodies are divided into segments (metamerism = segmentation)
- Tough exoskeleton
- Growth by molting = ecdysis
- Bilateral Symmetry
- Cephalization
- Paired Jointed legs
6
Q
What are some types of Arthropods (subphyla)?
A
- Myriapodia = Millipede + Centipedes
- Hexapodia = Insects
- Tribitomorpha = Crustaceans + Arachnids
- Chelicerata = Spiders + Horseshoe Crabs
- Crustacea = Lobster + Shrimp + Fresh Crabs
7
Q
How many species of arthropods are there?
A
1 Million species have been identified
