Bacteria cause food poisoning, and vomiting tends to be related to food poisoning. Given these facts, what tends to be related to bacteria among the following options: - heterotrophs - vomiting - chickenpox - healing - cancer - sea urchins - delayed-onset muscle soreness - Enzymes
vomiting

Cells vary in size as well as shape, but all cells are very small, and bacteria are single-cell microorganisms that are so small they can only be seen with a microscope. Given these facts, cells vary in size and shape and can only be seen with what among the following options: - a microscope - heightened senses - a telescope lens - colors - Solar energy - by indirect light - a good eye - A computer
a microscope

Q: Carbon may be stored in sedimentary rock for millions of years, and limestone is a type of sedimentary rock. Given these facts, what element can be stored in limestone for millions of years among the following options: - oxygen - Energy - matter - carbon - sodium - helium - rock salt - heat
A: carbon

Question: Gills are used for breathing water by aquatic animals, and all fish have gills . Given these facts, what do all fish breathe among the following options: - oxygen - lipids - air - keratin - water - seaweed - mud - lava
Answer: water

*Question*
Plants use unsaturated fatty acids to store energy, and among the unsaturated fatty acids are compounds with one, two or three double bonds. Given these facts, plants use what type of compounds to store energy among the following options: - thermal insulators - It helps them survive - during the day - spring, summer, autumn, winter - compounds with double bonds - hydrogen and oxygen - Something with exactly eight protons - it helps plants in growing
**Answer**
compounds with double bonds

*Question*
Competition may lead to aggressive behaviors or displays of aggression, and with so many does and so few older bucks, there is little competition for mating. Given these facts, what displays less aggression when there are fewer older members among the following options: - bacteria - rocks - bucks - bamboo - toads - cats - dogs - the Sun
**Answer**
bucks