BIOL 111 : Biol 111 lab review table

• School: McGill University
• Department: Biology (Sci)
• Course: BIOL 111
• Professor: Suzanne Gray

Document Summary

Gas exchange occurs in the gastroderm is and across the epidermis. Gland cells in the gastroderm is secrete digestive enzymes. Gastrovasc ular cavity is the location of digestion and absorption of food. Mouth serves as entrance and exit to gastrovasc ular cavity. Sexual reproduction: sperm is produced in testes on the upper half of body, near tentacles and one egg is produced in each ovary in the lower half of the body. Some individuals are hermaphrodite: usually occurs in the fall. Sperm released into water, enters ovary through hole in epidermis, zygote forms a hard covering and drops to the sediment, remains dormant until. They will attach its foot (basal disc) to the bottom of the dish and extend its tentacles and body column. Movement can occur in several different ways: gliding on its foot, inching along with its tentacles and foot, by somersaulti ng from foot, to tentacles, to foot, by floating on a.