If light bulbs are powered by heat, then what are light bulbs powered by? Answer choices: - heat - metal - wind - sun - energy - magnetism - gas - cold
heat
------
If producers use energy and minerals to make food, then what use energy and minerals to make food? Answer choices: - trees - plant life - humans - producers - bears - elephants - Most plants - ferns
producers
------
If human interaction causes animals to move to find shelter in another habitat, then what causes animals to move to find shelter in another habitat? Answer choices: - smell and taste - Greenhouse gases - deforestation - human interaction - animal control - human thoughts - human recycling - Pollution
human interaction
------
If insulin takes up glucose, then what does insulin take up? Answer choices: - warmth - heat - pancreas - glucose - sugar - Energy - fructose - Energy.
glucose
------