Q: Fact 1: Roundworms may be free-living or parasitic. Fact 2: Nematodes are microscopic, true roundworms. Given the two facts above, what are some nematodes?

Choose your answer from:
1). dangerous;
2). fungi;
3). parasites;
4). flying;
5). parisitic;
6). warm-blooded;
7). invincible;
8). insects;
A:
5).