Q: What do male cones in seed plants contain? Choices: - nutrients - spores - nitrogen - pollen A:
pollen

Q: What is a gram stain used to identify ? Choices: - radioactivity - acids or bases - different types of liquids - different types of bacteria A:
different types of bacteria

Q: Q: Interferons are produced in virally infected cells and cause them to secrete signals for surrounding cells to make what? Choices: - overwhelm proteins - resist proteins - Raising Proteins - antiviral proteins A:
A: antiviral proteins

Question: Q: The rise in greenhouse gases has what effect on the temperature of earth? Choices: - no effect - more moderate - it drops - it increases A:
Answer: it increases

*Question*
Q: All chemical changes involve a transfer of what? Choices: - pressure - fuel - oxygen - energy A:
**Answer**
energy

Q: Q: What is the term for the measure of the force of gravity pulling down on an object? Choices: - mass - density - pressure - weight A:
A: weight