*Question*
Fact 1: Coral reefs provide food and shelter to many ocean organisms.  Fact 2: Coral reefs are predominantly calcite.  Given the two facts above, answer the question "What provides food and shelter to many ocean organisms?" with the following options:  - houses  - umbrellas  - limestone  - ferns  - sharks  - barnacles  - calcite  - sheds
**Answer**
calcite

*Question*
Fact 1: Staying warm has a positive impact on an animal 's survival.  Fact 2: Animals who live in the forest have very soft, warm fur.  Given the two facts above, answer the question "What has a positive impact on a forest animal's survival?" with the following options:  - fire  - horses  - hair  - play  - fur  - warm  - tools  - rest
**Answer**
fur

*Question*
Fact 1: Rain causes erosion.  Fact 2: Erosion of rock makes nutrients available.  Given the two facts above, answer the question "What causes nutrients to be available?" with the following options:  - water  - rivers  - saliva  - fats  - Enzymes  - protein  - spring  - Cooking
**Answer**
water

*Question*
Fact 1: Cells that divide uncontrollably may form a tumor, or abnormal mass of cells.  Fact 2: Tumor Tumors are masses of neoplastic origin.  Given the two facts above, answer the question "cells that divide which way may form masses of neoplastic origin?" with the following options:  - non-neoplastic  - controllably  - epidermal  - an organism's body  - seldomly  - epidermis and dermis  - uncontrollably  - Veins and arteries.
**Answer**

uncontrollably