Evolution Part I Test (Ev1-Ev9)(M)

If Earth’s history is thought as a 24-hour day, humans would have appeared only during the last _____________ of that day.

• second

• minute

Which of these are fossils?

• The body of a baby mammoth frozen in a glacier.

• The bone of a recently killed elk

This technique can determine which of two fossils is older or younger than the other, but not their age in years.

• relative dating

• absolute dating

How old is Earth?

• 3.4 billion years old

• 4.6 billion years old

Where did most of the gasses that formed the early atmosphere come from?

• volcanos

• oceans

The Big Bang that create the universe was _____ billion years ago.

• 14

• 24

What are large organic molecules are made from?

'

• smaller organic molecules

• inorganic molecules

The first organic molecules were probably very simple oxygen-based molecules made of many atoms.

• true

• false

Identify which of these gases were in Earth's early atmosphere.

• ammonia, water vapor, methane, carbon dioxide

• oxygen, nitrogen, hydrogen, carbon monoxide

DNA is probably the most ancient of organic compounds.

• true

• false