Q: What occurs when muscle fibers get shorter? Choices: - muscle extension - muscle tension - muscle diffusion - muscle contraction A:
muscle contraction

Q: What is the chief organ of the urinary system? Choices: - liver - bladder - lung - kidney A:
kidney

Q: Q: When the oval window vibrates, it causes what else to vibrate as well? Choices: - cilia - timpani - hammer and anvil - the cochlea A:
A: the cochlea

Question: Q: What term means the adjusting of systems within a cell in order to restore balance or maintain equilibrium? Choices: - systemic regulation - aftertouch regulation - gaseous regulation - homeostatic regulation A:
Answer: homeostatic regulation

*Question*
Q: What are the egg shaped organs on either side of the uterus? Choices: - lungs - testes - kidneys - ovaries A:
**Answer**
ovaries

Q: Q: What is the water that falls from the sky called? Choices: - evaporation - condensation - moisture - precipitation A:
A: precipitation