Q: What occurs when plants release water vapor through stomata (leaf pores)? Choices: - inhalation - evaporation - crystallization - transpiration A:
transpiration

Q: Humans have about 20,000 to 22,000 genes scattered among 23 of these? Choices: - neutrons - ribosomes - atoms - chromosomes A:
chromosomes

Q: What do atoms form by sharing valence electrons? Choices: - phenotype bonds - neutron bonds - ionic bonds - covalent bonds A:
covalent bonds