View this time-lapse movie(http://openstaxcollege.org/l/conceptus) of a conceptusstarting at day 3. What is the first structure you see? Atwhat point in the movie does the blastocoel first appear?What event occurs at the end of the movie?

What do you mean by trabeculae?

Cnidaria (jellyfish and anemones) This is the first time we see a nervous system (nerve net) What are cnidocytes? How do they serve the organism? Polyp vs. Medusa stage/form.

What kind of body plan does Daphnia have (sac, or tube-within-a-tube)?

Describe the major features of the acanthocephalan body

Part I: Multiple choice: Circle the letter that bears the correct answer no erasing 1. The beatin of the flagellum draw a current of water in the interior of the cell through the tabular opening is known as: a. pores bearing (b. pores cell c. pores filling 2. In the sponge both the eggs and sperm are formed in: a. choancyte moebocytes d. none of these osculm hermaphorodites c. 3. The detachable section on the body of the tapeworm is called: a. pharynx b. ganglion proglottides d. none of these The water gets pushed out of sponge through a hole known as: osculum b. pores cell c. pores bearing d. pores filling 5. The planarian body has a tube-like muscular organ called: pharynx b. mouth c. endocytosis d. none of these 6. The round worms belong to the phylum: a. reproductive nematode c. prevalent d. none of these 7. The body of the flatworm are: acoelomagte b. ameoboyete c. aermaphrodites d. none of these 8. The Chinese liver flukes is also known as: clonorchis sinenis b. enteribium c.…

Endodermal Derivatives of the 10 mm Pig Embryo   QUESTIONS: Does the intestine communicate with the urogenital sinus? What germ layers make up the wall of the allantoic stalk?