Earth's Eras Notes-ES

Open Ended

What do you think was one of the last organisms to appear on Earth?

Multiple Choice

According to the law of superposition, the oldest fossils are found 

• At the top of the rock layers
• Near the bottom of the rock layers
• In the middle of the rock layers
• Somewhat near the surface

Multiple Choice

The Paleozoic Era is also called the "Age of Invertebrates", what is an invertebrate?

• an organism that swims

• an organism that has a skeleton

• an organsim that doesn't have a backbone

• an organism that only eats other animals

Multiple Choice

What is one way paleontologists can tell that the environment began to include dry land?

• plate movement and locations

• types of fossils

• distribution of fossils

• age of fossils

Multiple Select

Which of the following are characteristics of amphibians?

• warm blooded

• live birth

• lay eggs

• endothermic

• exothermic

What would a conifer offer that other types of trees don't?

How do mass extinctions affect future life?

What is one piece of evidence we have to support the evolution of humanoid organisms?