Answer:
A
Explanation:
Kinetic energy is the energy of mass in motion, a skateboard rolling across the street is moving, therefore it has kinetic energy.
Answer: D.
Explanation: Animal because animal cells are round and do not have a cell wall.
Antibiotic resistance is not an example of natural selection. Mutations may be a source of variation in any population of bacteria. When antibiotics are used at first, all the disease-causing bacteria are killed.
