Nematodes and arthropods both . Select one: a. develop an anus from the blastopore (pore) formed in the gastrula stage b. are suspension feeders c. grow by shedding their exoskeleton d. are lophotrochozoans e. have ciliated larvae

d

Explanation:nematodes are round worms.they live in sea ,land or freshwater habitat.they have an hydrostatic skeleton for movement. They possess a flexible and non-cellular cuticle.They are known for shedding their cuticle. This process is necessary for their growth.an example of nematode is the hookworm.

Arthropods are the most diverse phylum in the animal kingdom.they have jointed appendages and an exoskeleton containing chitin.they may be segmented into head and truck, head, thorax and abdomen or cephalothorax and abdomen.they tend to shed of their exodkeleton during the process of metamorphosis . examples of arthropods include ticks, cockroaches

1. is geographic distribution

2 is increasing complexity

3 is transitional forms