(Question)
Q: The vagina connects to which internal organ? Choices: - artery - valves - ovaries - uterus A:
(Answer)
uterus

(Question)
Q: What is the most abundant type of biological entity on the earth? Choices: - bacteria - reptiles - insects - viruses A:
(Answer)
viruses

(Question)
Q: What returns blood from capillaries to an atrium? Choices: - the lymph system - arteries - the liver - veins A:
(Answer)
veins