Q: Q: What type of lipids contain the element phosphorus, carbon, hydrogen and oxygen? A:

OPTIONS:
- filaments
- eukaryotes
- alleles
- phospholipids

A: phospholipids

Q: Q: Elements are either metals, nonmetals, or what? A:

OPTIONS:
- reactive metals
- partial metals
- unstable metals
- semimetals

A: semimetals

Q: Q: What are non-steroid hormones made of? A:

OPTIONS:
- proteins
- Molecules
- fats
- amino acids

A: amino acids

Q: Q: Science is a process of knowing about the natural universe through what two actions? A:

OPTIONS:
- thinking and guessing
- changes and experimentation
- guessing and observing
- observation and experimentation

A:
observation and experimentation