Q: What did volcanic gases help to form on earth? Choices: - water - plants - rocks - atmosphere A:
atmosphere

Q: What are composed of alternating positive and negative ions? Choices: - magnetic crystals - polar bonds - radioactive substances - ionic crystals A:
ionic crystals

Q: Q: What is the term for longer chains of monosaccharides ? Choices: - proteins - hydrocarbons - oligosaccharides - polysaccharides A:
A: polysaccharides

Question: Q: The numbers and types of species in most ecosystems change to some degree through time and this is called? Choices: - physiological succession - continuous succession - environmental succession - ecological succession A:
Answer: ecological succession

*Question*
Q: Are the joints between the vertebrae contained in your backbone fully movable, partially movable, or unmovable? Choices: - none of these - unmovable - fully movable - partially movable A:
**Answer**
partially movable

Q: Q: What type of planet is jupiter? Choices: - a noble gas - a phantom - a red dwarf - a gas giant A:
A: a gas giant