Answer:
B:animal cells have cell walls
Answer:
enzyme catalase
Explanation: When the enzyme catalase comes into contact with its substrate, hydrogen peroxide, it starts breaking it down into water and oxygen.
Answer:
Orbit or Orbitals, they orbit around the sun counter-clockwise
Fun Fact:
If you looked at the solar system from the bottom the planets would move clockwise.
An example of an dramatic environmental event can be deforestation, or it can be animals losing their homes.