2. One species of Amazon piranha usually does not kill its prey, instead biting off and feeding on the of other fish. A. Fins
B. Tails
C. Gills
D. Parasites

3. Because of its hunting habit of jumping out of the water, the arowana earned the nickname, .
A.''Water monkey''
B.''Water spring''
C.''River frog''
D.''Sea monkey''

5. What is the staple crop that Caboclos plant after the floodwaters recede?
A. Corn
B. Manioc
C. Potatoes
D. Onions