It Is Difficult to Imagine How Only Part of an Adaptation

question 25

Multiple Choice

It is difficult to imagine how only part of an adaptation could function, but Darwin explained this. How would he answer the question, "What good is 5% of an eye?"

• A) Once an organism has the first 5% of an adaptation, the rest will quickly evolve.
• B) Five percent of an eye is always better than a full eye since it is easier to grow. The difficulty is in explaining fully formed eyes.
• C) Since variation is random, we don't expect to see more than about 5% of an eye in any species.
• D) Five percent of an eye, perhaps a simple light-sensitive spot, is often better than having no eye at all.

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Definitions:

Precognition

The purported capability of foreseeing future events or having knowledge about them before they take place.

Psychokinesis

The purported psychic ability allowing a person to influence a physical system without physical interaction.

Telepathy

The claimed conveyance of data between two individuals without the employment of recognized human sensory pathways or tangible contact.

Clairvoyance

The purported psychic ability to gain information about an object, person, location, or physical event through extrasensory perception.