Fact 1: Roundworms make up the phylum Nematoda. Fact 2: Roundworm Roundworms have complete digestive tracks. Given the two facts above, what kind of digestive tracks do nematoda have?
Select from the following.
[1]. complete
[2]. homogenous
[3]. grow
[4]. allow growth
[5]. ligt
[6]. food
[7]. organ
[8]. heat or cold
[1].