(Question)
Q: Every species has a characteristic number of what? Choices: - ribosomes - receptors - DNA - chromosomes A:
(Answer)
chromosomes

(Question)
Q: What occurs when there is little to no rain in a period of time? Choices: - pollution - hurricanes - floods - droughts A:
(Answer)
droughts

(Question)
Q: What is an ion that is in common to both salts in a solution? Choices: - regular ion - strong ion - native ion - common ion A:
(Answer)
common ion