(Question)
Q: What system is the spinal cord related to? Choices: - circulatory system - lymphatic system - digestive system - nervous system A:
(Answer)
nervous system

(Question)
Q: In what do substances combine chemically to form a new substance? Choices: - suspension - component - element - compound A:
(Answer)
compound

(Question)
Q: What does the central cell develop into after double fertilization? Choices: - endocell - xygote - exosperm - endosperm A:
(Answer)
endosperm