Answer:
Sedimentary rocks are formed from small pieces of rock. Deltas, bottom of waterfalls, and river banks is where they are formed.
Explanation:
 
        
             
        
        
        
 One group of reptiles, characterized by the fossil Archaeopteryx, led to the evolution of birds. The correct answer is birds
 
        
                    
             
        
        
        
This is true. it is called origin.
        
             
        
        
        
Positive: You get to see different animals, see all kinds of habitats, learn new facts about all the animals and see them maybe in action! 
Negative: They might be sleeping, In a cage or fence so they can't get out, restricted. 
        
                    
             
        
        
        
<span>The correct answer is Paramecia, Euglenoids, and Mold. These are all unicellular eukaryotic organisms. Mold may seem like one big piece but it's actually a bunch of unicellular organisms living together and constantly spreading over foor or similar things. They are most commonly predators.</span>