Q: What class of animals, translated as "head foot", includes octopuses, squids, cuttlefish, and nautilus? A:

OPTIONS:
- mollusks
- crustaceans
- bivalves
- cephalopods

Answer: cephalopods

Problem: OPTIONS:
- moisture and elevation
- pressure and temperature
- time and temperature
- temperature and moisture
Q: Q: What are terrestrial biomes determined by? A:
Answer: temperature and moisture

Problem:OPTIONS:
- variation
- evaluation
- evacuation
- observation

Q: What term means anything that is detected either through human senses or with instruments and measuring devices that extend human senses? A:
****
A: observation

Q: What tool do scientist's use to show the evolutionary pathways and connections among organisms? A:
OPTIONS:
- conceptual tree
- superficial tree
- photogenetic tree
- phylogenetic tree
phylogenetic tree

Q: The validity of thought experiments, of course, is determined by this? A:
OPTIONS:
- predictive observation
- theoretical observation
- hypothetical observation
- actual observation

Answer: actual observation

input with options: Q: By what kind of change can a chemical change be reversed? A:
OPTIONS:
- another carbon change
- another thermal change
- another radioactive change
- another chemical change
output:
another chemical change