*Question*
If if nitrogen is heated it will expand, then what will expand when heated? Answer choices: - gravity - density - a prism - nitrogen - mass - water vapor - arteries - glass
**Answer**
nitrogen

*Question*
If hormones control many cell activities and are important in the chemical equilibrium of the body, then hormones control many cell activities and are important to what? Answer choices: - h2o - an organism's body - weather - increases a body's strength - production of energy - Transfers energy - maintaining density - chemical equilibrium of body
**Answer**
chemical equilibrium of body

*Question*
If prokaryotes lack regions that do not code for proteins, then what lacks regions that do not code for proteins? Answer choices: - prokaryotes - human cells - peachleaf willow - graptolites - barnacles - plant cells - eukaryotes - gastropod shells
**Answer**
prokaryotes

*Question*
If better senses have a positive impact on an animal 's reproduction, then better senses have a positive impact on an animal 's? Answer choices: - sensory neurons - Sand dollars - organs - genetic diversity - growth - food and shelter - kinetic energy - reproduction
**Answer**
reproduction