Vocabulary

• in the world: Used to emphasize a question expressing surprise, confusion, disbelief
• calling the shots: To be in charge; to make the decisions.
• also known as: Also called; alternatively named.
• together with: In addition to; along with.
• with just: Using only; with no more than.
• for example: As an illustration or instance.
• in fact: Used to emphasize the truth of a statement, especially one that contrasts with or contradicts something else.
• common ancestor: An ancestor that two or more species have in common and from which they both evolved.
• end up with: To have something as a result.
• work together: To collaborate or cooperate with others to achieve a common goal.
• common: Area in a city or town that is open to everyone
• brain: To strike someone forcefully on the head
• impressive: Causing admiration or respect; grand or expensive
• function: Social event, or party such as a wedding
• tiny: Very, very small
• system: Set of organized, planned ideas that work together
• similar: Nearly the same; alike
• nervous: Concerning the system of nerves in the body
• human: A person; a man, woman or child
• ancestor: A person from your family that lived in the past
• evolutionary: Concerning gradual change over time
• evolution: Theory that living things change over time
• regulate: To control something with rules or laws
• fly: Common flying insect, sometimes blue in color
• insect: A small animal with 6 legs, such as a bee or ant