Q: What happens when a sodium atom loses an electron? Choices: - becomes calcium - gains a proton - combines with hydrogen - becomes sodium ion A:
becomes sodium ion

Q: Along with nerve tissue, what kind of tissue are lecithins and cephalins important constituents of? Choices: - heart tissue - lung tissue - skin tissue - brain tissue A:
brain tissue

Q: Q: Major climate types are based on what two things? Choices: - topography & temperature - environment & precipitation - oxygen & precipitation - temperature & precipitation A:
A: temperature & precipitation

Question: Q: Who lack some of the defining traits of chordates? Choices: - Adult Mammals - Childern - Reptiles - adult humans A:
Answer: adult humans

*Question*
Q: What happens to the volume of the gas when temperature increases but amount of gas and its pressure are constant? Choices: - nothing - volume remains constant - volume decreases - volume increases A:
**Answer**
volume increases

*Question*
Q: What is the process by which the remains of living things become fossils? Choices: - decomposition - sublimation - petrification - fossilization A:
**Answer**
fossilization