Earth's Biological History

Question 1

The first land plants to appear were

Accepted Answer

mosses.

Question 2

Which of the following is NOT a way that the impact of an asteroid contributed to the great dinosaur extinction?

Accepted Answer

It increased the amount of available water for animals.

Question 3

An Iridium layer in the rock layers supports the impact of an asteroid caused the Dinosaur extinction. Which is true?

Accepted Answer

All dinosaur fossils are found below the iridium layer

Question 4

What was the Cambrian Explosion?

Accepted Answer

Sudden appearance of many invertebrates in the Paleozoic.

Question 5

In which Era did flowering plants first appear?

Accepted Answer

Mesozoic Era

Question 6

We know that the mammoth was wooly because a ___________ fossil of one was found.

Accepted Answer

preserved

Question 7

Which layer is most likely from the Jurassic Period?

Accepted Answer

D. Yellow

Question 8

In what type of rock are fossils most often found?

Accepted Answer

Sedimentary

Question 9

Which of the following is a NOT a requirement for being an index fossil?

Accepted Answer

the fossil must be found over a small area of Earth

Question 10

What is the OLDEST period in the Phanerozoic Eon?

Accepted Answer

Cambrian

Question 11

A brachiopod is a bivalve invertebrate. What does bivalve mean?

Accepted Answer

Having 2 shells that open and close.

Question 12

Which of the following periods is NOT in the Mesozoic Era?

Accepted Answer

Devonian

Question 13

Which fossil layer in the image is most likely to contain fossils from the Cambrian period?

Accepted Answer

A. Green

Question 14

During which Era did dinosaurs dominate?

Accepted Answer

Mesozoic

Question 15

Which is NOT an Era found within the Phanerozoic Eon?

Accepted Answer

Quaternary

Question 16

Pangaea formed in the ___________ Era and broke apart during the ____________ Era.

Accepted Answer

Paleozoic, Mesozoic

Question 17

Which were most likely the first living organisms on Earth?

Accepted Answer

Bacteria

Question 18

Scientists who study fossils are called paleontologists.

Accepted Answer

True

Questions 18