*Question*
If cows adapt to cold temperatures, then what adapts to cold temperatures? Answer choices: - sheep - bears - koalas - hot chocolate - hot springs - cows - humans - tropical plants
**Answer**
cows

*Question*
If blood pH may become unbalanced if the lungs are working too fast or too slow, then what may become unbalanced if the lungs are working too fast or too slow? Answer choices: - Decibels - hair on head - air pressure - gasoline levels - Acids - energy usage - brain chemistry - blood pH
**Answer**
blood pH

*Question*
If burning fuels that are not sustainable increases carbon in the atmosphere, then what sort of fuel burning puts carbon into the atmosphere? Answer choices: - Greenhouse gases - Organic compounds - vehicles - Pollution - non-sustainable - chlorofluorocarbons - Conifers - an engine
**Answer**
non-sustainable

*Question*
If male gametes swim from male to female reproductive organs for fertilization, then what swims from male to female reproductive organs in fertilization? Answer choices: - ovaries - barnacles - fur seals - eggs - gastropod shells - male gametes - kinetic energy - female gametes
**Answer**
male gametes