Q: What kind of rocks form as an existing rock is altered by high temperature or pressure? Choices: - igneous - sedimentary - basaltic - metamorphic A:
metamorphic

Q: What are protons and neutrons that make up the nucleus of an atom called? Choices: - baryons - pions - electron shells - nucleons A:
nucleons

Q: Q: The superior vena cava and the inferior vena cava are veins that return blood lacking what to the heart? Choices: - hemoglobin - carbon dioxide - nitrogen - oxygen A:
A: oxygen

Question: Q: What are the two most common common ways that brain and spinal cord injuries occur? Choices: - falls and surgical error - sports and household accidents - car crashes and falls - car crashes and athletic activities A:
Answer: car crashes and athletic activities

*Question*
Q: What incredibly successful species has quickly colonized almost all of earth's terrestrial habitats, but also impacted earth, its climate, and its environment? Choices: - chimpanzees - birds - fish - humans A:
**Answer**
humans

(Q).
Q: What physical property of matter reflects how closely packed the particles of matter are? Choices: - makeup - build up - mass - density A:
(A).
density