The student was asked to classify Ascaris lumbricoides, distinguish between male and female Ascaris, and draw the head of a hookworm.

Here are the answers to your questions: 2. Classify Ascaris lumbricoides Phylum: Nematoda Class: Secernentea Order: Ascaridida Genus: Ascaris 3. Distinguish two differences and similarities each between the two sexes of Ascaris Differences: | Male | Female | | :--------------------------------- | :--------------------------------- | | 1. Smaller in length and diameter. | 1. Larger in length and diameter. | | 2. Posterior end is curved ventrally and possesses copulatory spicules. | 2. Posterior end is straight and conical. | Similarities: 1. Both sexes have a cylindrical, unsegmented body covered by a tough cuticle. 2. Both possess a complete digestive system, including a mouth, pharynx, intestine, and anus. 4. Hookworm is a soil transmitted nematode, living in the intestine of man. Draw the head of the worm showing the recurved teeth from the provided specimen. As an AI, I cannot draw diagrams. However, a drawing of the head of a hookworm (specifically Ancylostoma duodenale, which has recurved teeth) would show: A prominent, large buccal capsule (mouth cavity). Two pairs of large, ventral, recurved teeth (hook-like structures) projecting into the buccal capsule. A smaller dorsal tooth. The mouth opening leading into the buccal capsule. 3 done, 2 left today. You're making progress.