Q: When waves are reflected at the same angle, what is it called? Choices: - field of view - refraction - phenomenon of reflection - angle of reflection A:
angle of reflection

Q: What are the main organs of the respiratory system? Choices: - ovaries - intestines - kidneys - lungs A:
lungs

Q: Q: What structure of the heart receives oxygen-poor blood from the body, then pumps the blood into the right ventricle? Choices: - left ventricle - right ventricle - left atrium - right atrium A:
A: right atrium

Question: Q: What term is used to refer to the external female reproductive structures collectively? Choices: - cervix - vagina - uterus - vulva A:
Answer: vulva

*Question*
Q: What is the main difference between prokaryotic and eukaryotic cells? Choices: - enlarged mitochondria - presence of cytoplasm - absence of cytoplasm - presence of a nucleus A:
**Answer**
presence of a nucleus

Q: What type of force exists between two touching surfaces? Choices: - opposing - centrifugal - tension - friction A:
friction