Unit 5 Life

On which islands did Charles Darwin make some of his most important observations?

Why is a liquid an important condition for the creation of life?

What were the earliest forms of life?

What is the study of living organisms (life), their structure, behavior, and distribution?

What three factors are most important for scientists studying possible asteroid impacts

What is the scientific purpose of life?

Where on the Earth did life [mostly likely] first emerge, where all the ingredients and conditions for life existed?

What is the difference between humans and all the other things (volcanoes, asteroids) that has caused mass extinctions?

What critical development allowed animals to move permanently onto land, where they continued to evolve.

What is the most common chemical in all species of life?

The earth experienced ____ mass extinction events.

Walter Alvarez found high levels of iridium in the layer between the Cretaceous & Tertiary rocks. What did this suggest?

All living things on Earth share important processes. What are those processes?

Of the 5 extinction events, Carbon Dioxide (CO2)/climate change has contributed to ____ of them.

There have been five instances of sharp decreases in life, called...

Name the process by which variations between generations increase or decrease the chances of survival

What type of gas is carbon dioxide?

Scientists who study geological time (like pancake earth) look for changes in rock layers and changes in ________.

What molecule, also called the biological blueprint for life, do all living organisms possess?

Why did Walter Alvarez’s story of the extinction of the dinosaurs not sit well with many geologists in 1980?

What role did asteroids play in the rise of our mammalian ancestors?

What does L.U.C.A stand for?

What brought about the extinction of the dinosaurs (an event now known as the K-T event)?

How did Darwin explain the different beaks on different finch species throughout the Galapagos Islands?

Fossil fuel types