Q: The production of multiple copies of a single gene is called? Choices: - cell cloning - gene variation - gene change - gene cloning A:
gene cloning

Q: Why do waves travel faster through solids? Choices: - particles fuse together - particles range together - particles pipe together - particles closer together A:
particles closer together

Q: Q: What are secreted into the gi tract by organs of the gi tract or from a nearby gland named the pancreas? Choices: - stomach acid - insulin and pepsin - bile - digestive enzymes A:
A: digestive enzymes

Question: Q: What kind of light bulb contains a thin wire filament made of tungsten that gets hot and glows? Choices: - black light - LED - fluorescent - incandescent A:
Answer: incandescent

*Question*
Q: Particles of sand and what other substance are carried by longshore drift? Choices: - magma - bone - soil - rock A:
**Answer**
rock

*Question*
Q: When atoms gain or lose electrons, they can form electrically charged particles called what? Choices: - crystals - eons - toxins - ions A:
**Answer**
ions