1.  This a fish , a fish is a limbless cold-blooded vertebrate animal with gills and fins and living wholly in water. 
   
2. This is a reptile . a reptile is a cold-blooded vertebrate of a class that includes snakes, lizards, crocodiles, turtles, and tortoises. They are distinguished by having a dry scaly skin, and typically laying soft-shelled eggs on land.

3. This is an animal trace, and an animal trace is a course or path that one follow made by the passage of animals

4, This is a flower , and a flower is the seed-bearing part of a plant, consisting of reproductive organs (stamens and carpels) that are typically surrounded by a brightly colored corolla (petals) and a green calyx (sepals).