Early Life Quiz

The video tutorial covers the formation of the solar system from a nebula, the age and early state of Earth, the development of Earth's early atmosphere, and the emergence of life. It discusses fossilized bacterial mats, the role of autotrophs in atmospheric development, and the evolution of cells with a nucleus. The tutorial concludes with the development of multicellular life and the characteristics of simple cells.

What is the proposed origin of our solar system?

• A black hole

• A comet

• A nebula

• A supernova

How old do scientists believe Earth is?

• 4.6 trillion years

• 4.6 thousand years

• 4.6 billion years

• 4.6 million years

What was Earth's early atmosphere likely composed of?

• Methane and ammonia

• Hydrogen and helium

• Carbon dioxide and nitrogen

• Oxygen-rich air

What are the fossilized remains of early life forms known as?

• Dinosaur bones

• Bacterial mats

• Mineral deposits

• Plant fossils

What is a simple cell that lacks complex structures like a nucleus called?

• Prokaryote

• Eukaryote

• Autotroph

• Heterotroph