Q: Q: Melting ice and grinding wood into sawdust are examples of what? Choices: - chemical changes - reversible changes - unpredictable changes - physical changes A:
A: physical changes

Q: Q: What do extensive properties depend on the amount of? Choices: - experimental controls - sample temperature - independent variables - matter in a sample A:
A: matter in a sample

Q: Q: What is the main problem in both types of diabetes? Choices: - metabolism - blood concentration - blood pressure - insulin production A:
A: insulin production

Q: Q: The marsupial embryo is nourished inside the uterus with food from a yolk sac instead of through a what? Choices: - stomach - ovum - umbilical cord - placenta A:
A: placenta