If the most ancient seed plants are trees with woody trunks, then the most ancient what are trees with woody trunks? Answer choices: - it needs them - leafy greens - more abundant - Leeuwenhoek - flowering buds - pollen - graptolites - seed plants
seed plants
------
If microbial fuel cells convert food into electrical energy, then what converts food into electrical energy? Answer choices: - transportation technology - windmills - matter vibrating - solar panels - adding heat - one celled organisms - microbial fuel cells - dams
microbial fuel cells
------
If monotremes require warmth for incubation, then monotremes require what for incubation? Answer choices: - nutrients - warmth - hormones - energy - Energy. - sunlight - heat - seeds
warmth
------
If being exposed to wind can cause desertification, then being exposed to wind can cause what? Answer choices: - Electrical energy - tarnation - deviation - Pollution - Dehydration - flooding - desertification - lamination
desertification
------