Q: What is the water that falls from the sky called? Choices: - evaporation - condensation - moisture - precipitation A:
precipitation

Q: What shape is the colony of a volvox cell? Choices: - pyramid - coil-shaped - tubular - hollow ball shaped A:
hollow ball shaped

Q: Each species of legume is associated with a strain of __________ Choices: - agrobacterium - fungi - heliotropium - rhizobium A:
rhizobium

Q: What has the smallest, lightest atoms of all the elements and is colorless, odorless, tasteless and nontoxic, but highly flammable in its pure state? Choices: - helium - magnesium - barium - hydrogen A:
hydrogen