Animation description
This animation begins with a cartoon of a T. rex looking confused, with question marks around its head. This image remains until option b, a continuous line of descent, is clicked. Then, the T. rex is replaced by an image of a large evolutionary tree with many branches at the top, all ultimately connected to a single "trunk" lineage. A zig-zagging orange line traces a single lineage from the top of the tree back in time to the trunk of the tree. An arrow shows that time progresses in the upwards direction on the tree, with the bottom of the tree representing 3.5 billion years ago.
Animation text
Panel 1:
Quiz A
Lineage might have been a new term for you. What is the best definition of lineage?
a) A single line showing age.
b) A continuous line of descent.
c) A set of parallel lines.
Panel 2:
- Feedback from choice a: Hmmm. Take a closer look at the answers and try again.
- Feedback from choice b: Correct! A lineage is a continuous line of descent. Let's try another.
- Feedback from choice c: Hmmm. Take a closer look at the answers and try again.