Answer:
The area under a speed-time graph represents the distance travelled.
Answer:
Vestigial organs show traits that a species once needed to have to perform certain tasks
Explanation:
ALL animals make use of other animals and organisms for food. They are heterotrophic so they have to get energy elsewhere.
ALL animals are capable of motion at some stage of their lives.
Animals developed specialized cells and tissues that are advanced and complex.
And because all animals eat I would assume they all digest the food they ingest. Other than parasites who don't really digest their food.
