Answer:
1. evolution is the way a species evolves to have certain characteristics to survive in their habitat
2. whales used to be land animals, but have evolved backwards into aquatic mammals
3. how would evolution of one species effect another species?, how long could it take?, and what would the future be like for that species
4.evolution is most likely caused by a genetic mutation that changes the animal's appearance. then when they mate, their genes will be passed down to it's offspring.
Step-by-step explanation: