The Following Questions Refer to the Phylogenetic Tree in Figure

question 29

Multiple Choice

The following questions refer to the phylogenetic tree in Figure 20.3, depicting the origins of life and of the three domains. Horizontal lines indicate instances of gene or genome transfer.
Figure 20.3
A possible phylogenetic tree for the three domains of life.
-Which portion of Figure 20.3 may ultimately be better depicted as a "ring"?

• A) the bacterial lineage
• B) the archaean lineage
• C) the eukaryotic lineage
• D) the trunk of the tree
• E) the part corresponding to the first living cell on Earth

---

Definitions:

Flashbulb Memories

Flashbulb memories are vivid, detailed memories of significant events that feel as if they have been imprinted or 'burned in' like a photograph, often associated with surprise or emotional shock.

Primacy And Recency Effects

The tendency to remember the first (primacy) and last (recency) items in a series better than those in the middle.

Schema

A cognitive framework or concept that helps organize and interpret information, allowing individuals to make sense of their experiences and the world around them.

Proactive Interference

The phenomenon where old information interferes with the ability to learn or remember new information.