1.What is the name of the pumping organs of an earthworm?
2.Trace the parts of the digestive tract through which food passes using arrows and a diagram. (use back of paper...label #2)
3.Which parts of the earthworm serve as its brain? __________ How are these parts connected to the rest of the body? _______________
4.Which of the parts of the worm’s body that you saw are included in the excretory system? ____________________
5.How can you find out whether an earthworm eats soil?
the earthworm’s structural adaptations are its setae. How do you think the
earthworm’s setae make it well adapted to its habitat (how do they work?)?
7.How is the earthworm’s digestive system adapted for extracting relatively small amounts of food from large amounts of ingested soil? ________________________
dissection of the earthworm did not go beyond segment 32.What will you observe
if you dissect the remainder of the worm to its posterior end? ________
9. Attach the completed Earthworm I, II, and III coloring sheets to this sheet .
10.During mating, two earthworms exchange sperm. Fertilization is external, and cocoons are produced from which the young eventually emerge. Refer again to steps 5 and 11, where you located the earthworm’s reproductive organs. Use the background information to identify the role of each organ in the reproductive process of the earthworm.