Q: Q: The mixture of gases that surrounds the planet and makes up the atmosphere is known as ________. A:

OPTIONS:
- energy
- vaccum
- fuel
- air

A: air

input: OPTIONS:
- fish
- sponges
- prokaryotes
- cnidarians Now, answer this question: Q: What class of animal, including hydras and jellies, is considered the simplest to contain a nervous system? A:
A:
output: cnidarians

Q: The posterior half of the foot is formed by seven tarsal bones. the most superior of these bones is called? A:

OPTIONS:
- metatarsal
- patella
- calcareous
- talus

Answer: talus

Problem: OPTIONS:
- two
- five
- eleven
- three
Q: Q: How many pathways do plants have for carbon fixation? A:
Answer: three

Problem:OPTIONS:
- astrologists
- geologists
- physics
- chemists

Q: Molecules are represented by symbols that all who agree on? A:
****
A: chemists

Problem:OPTIONS:
- contamination change
- carbon change
- reactive change
- chemical change

Q: What type of change has occurred when a copper penny changes color? A:
****
A:
chemical change