Q: What system gets less effective with age, that generally makes older people more disease susceptible? Choices: - infectious system - reproductive system - nervous system - immune system A:
immune system

Q: Which feature in maps allows users to make corrections between magnetic north and true north? Choices: - inset - scale - key - double compass rose A:
double compass rose

Q: Q: Both solids and liquids hold a definite what? Choices: - mass - size - shape - volume A:
A: volume

Question: Q: What sustains the fetus while it grows inside the mother's uterus? Choices: - bacteria - endometrium - mitochondria - placenta A:
Answer: placenta

*Question*
Q: The bones of the newborn skull are not fully ossified and are separated by large areas called what? Choices: - sutures - pores - fissures - fontanelles A:
**Answer**
fontanelles

*Question*
Q: What is the protein that carries iron that binds with oxygen in red blood cells? Choices: - keratin - potassium - insulin - hemoglobin A:
**Answer**
hemoglobin