LS 7 Chapter 8 Review

"The Upright Man"

Which of the following is NOT a usual cause of a mass extinction?

Birds and mammals first appeared during the ______ Era.

The amount of time it takes for an amount of a sample of radioactive atoms to be reduced by 1/2

Most primates have which of these characteristics?

The "Age of the Mammals"

This era is called "The Age of the Reptiles"

Fish first evolved during which era?

Which of these were the first to migrate out of Africa?

Which of the following was NOT found in Earth's very early history?

The "calendar" scientists use to represent the history of Earth.

Earth's history is broken down into large sections of time called

Oxygen began to accumulate in Earth's atmosphere due to which of these?

If two half-lives have passed, the percentage of radioactive material remaining in a sample is:

The "Handy Man"...

Australopithicus afarensis is represented by which of these?

Determining the age of a fossil by measuring the amount of a radioactive element in it.

Which occurred during the Mesozoic Era?

The most recent hominid of the following is:

At one point all of the modern continents were joined together to form which of these?

The end of an era is usually marked with a(n)

Determining the age of a fossil by comparing it to known ages of rocks/fossils around it.

Which of the following is the closest living relative to humans?

Trilobites were common during which era?

Traces or imprints of the remains of an organism embedded in rock.

The Paleozoic Era is marked with which of these?

Primates evolved during the __________ Era?

The earliest period in Earth's history was the

Humans evolved during the ___________ Era

The most recent era is the _______ Era

A period of time in which a majority of organisms go extinct.

Lemurs, lorises, and aye-ayes are all:

Early organisms were

The largest mass extinction known marked the end of which era?

We believe that the continents and the oceans are found on top of which of these?

Which of these is NOT a primate?

Dinosaurs roamed the Earth during the ____ Era