Life

What is the biological blueprint for everything that exists?

• DNA

• Bacteria

• Atoms

• Cells

What is the earliest form of life?

• Dinosaurs

• Mammals

• Birds

• Bacteria

Why is the egg a critical development?

• allows sea creatures to get oxygen

• allows animals to move permanently onto land

• allows me to eat delicious omelets

What did the extinction of the dinosaurs clear the way for?

• birds

• multicellular organisms

• bacteria

• humans

What do most people believe is the reason for the emergence of life on Earth?

• a chemical reaction/volcanic eruption

• the extinction of the dinosaurs

• the emergence of oceans

What did humans ultimately evolve from?

• The tiny mammals that appeared after the asteroid collision that wiped out the dinosaurs.

• The dinosaurs

• Sheep and goats

How did primates take the first step toward being human?

• Climbing trees

• Making fire and tools

• Walking on their hind legs

• Flying

Which mini-threshold of life happened first?

• Eurkaryotes

• Brains

• Photosynthesis

• Mammals

Which mini-threshold was characterized by DNA getting locked inside the nucleus?

• Photosynthesis

• Brains

• Multicellular Organisms

• Eukaryotes

Which mini-threshold was characterized by the development of billions of cells?

• Multicellular organisms

• Eukaryotes

• Brains

• Mammals