Which organ system includes the spleen and the tonsils?
A) digestive
B) endocrine
C) nervous
D) cardiovascular
E) lymphatic
E
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"Chondrichthyes" means "cartilaginous fishes." Biologists used to assume that bone was not evolved until the Osteichthyes, or bony fishes
What clues do we have that shark ancestors, at some level, had bone? How can we infer this from (a) evidence from the fossil record and (b) evidence from comparative anatomy?
The ________ attaches to the zygomatic arch and also to the angle of the mandible.
A. buccinator B. genioglossus C. masseter D. stylohyoid E. temporalis
Why can one say that chemical digestion begins in the mouth?
A. The saliva contains electrolytes. B. The saliva contains lysozyme. C. The saliva contains mucus. D. The teeth grind food to expose surface area for enzymatic action. E. The saliva contains amylase and lipase.
The blood smear is also called the ____________________
Fill in the blank(s) with correct word