Your Professor Wants You to Construct a Phylogenetic Tree of Orchids

question 8

Multiple Choice

Your professor wants you to construct a phylogenetic tree of orchids. She gives you tissue from seven orchid species and one lily. What is the most likely reason she gave you the lily?

• A) to see if it's a cryptic orchid species
• B) to serve as an out-group
• C) to see if the lily and the orchids show all the same shared derived characters synapomorphies)
• D) to see if you were paying attention

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Definitions:

Behavioural Component

Describes the noticeable actions or reactions of someone when faced with external or internal triggers.

Emotional Experience

The complex feelings or states that arise from one's circumstances, mood, or relationships with others.

Whitewater Rafting

An outdoor recreational activity that uses an inflatable raft to navigate a river or other body of water with varying degrees of rough water.

Facial Feedback Hypothesis

The idea that facial expressions can influence emotional experiences, such as smiling leading to feeling happier.