1.The _____________ is a muscular enlargement at the end of the esphagus. It is

Question

1.The _____________ is a muscular enlargement at the end of the esphagus. It is compartmentalized in birds (__________, and _____________) and cud-chewing ungulates (_________, _________, ___________, and __________). {Always rostral to caudal in such series.} It terminates at the

WORD BANK:

1. obaomasum

2. rumen

3. omasum

4. pyloric sphincter

5. proventriculus

6. stomach

7. gizzard

8. reticulum

2. Cleavage occurs in different ways depending on the amount of yolk present in the eggs. Two common terms for these differences in cleavage are a _______ type seen in ___________ like amphioxus, which have a ___________ egg, and __________ type seen in ___________ or the chicken that has a _________ egg. The former type also occurs in ___________, also known as the frog that has a ________ egg.

WORD BANK:

1.macrolecithal

2. mesolecithal

3. holoblastic

4. microlecithal

5. meroblastic

6. branchiostoma

7. rana

8. gallus

Explanation / Answer

1. Stomach, proventriculus, gizzard, rumen, reticulum, omasum, obaomasum, pyloric sphincter.

2. Holoblastic, branchiostoma, microlecithal, meroblastic, Gallus, macrolecithal, rana, mesolecithal.

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