Q: Q: The distance between the crests of electromagnetic waves is called what? A:

OPTIONS:
- trough
- variation
- crest
- wavelength

A: wavelength

input: OPTIONS:
- environment to time
- value to time
- construction to time
- property to time Now, answer this question: Q: What kind of variation does a rate measure? A:
A:
output: property to time

Q: What functions like a flexible coat of armor, preventing the protist from being torn or pierced without compromising its range of motion? A:

OPTIONS:
- fimbriae
- biofilm
- endothelium
- pellicle

Answer: pellicle

Problem: OPTIONS:
- vertebrates
- sporozoans
- tunicates
- lancelets
Q: Q: What are invertebrate chordates that retain all four defining chordate traits as adults called? A:
Answer: lancelets

Problem:OPTIONS:
- by age
- by distance
- by size
- by color

Q: What is the most common way to classify stars? A:
****
A: by color

Problem:OPTIONS:
- ingredients
- structures
- compounds
- elements

Q: The ancient greek philosopher aristotle thought that all matter consists of just four what, which he identified as earth, air, water, and fire? A:
****
A:
elements