Suppose You Travelled Back in Time and Located the First

question 19

Multiple Choice

Suppose you travelled back in time and located the first animals to have evolved feathers. You found that these animals were tree-dwelling ectotherms, able to run quickly but unable to fly. You also noticed that only males had feathers. Which hypothesis of feather evolution would these data most support? Feathers initially evolved in a role associated with ________.

• A) flight
• B) insulation
• C) courtship behaviour
• D) gliding

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Definitions:

Proximity Switch

An electronic sensor capable of detecting the presence of nearby objects without physical contact, often using electromagnetic fields.

Physical Contact

The situation or condition where two or more objects are touching each other or connected in a way that allows for the transfer of electricity, heat, or mechanical forces.

Capacitance

Capacitance is the ability of a system or component to store an electrical charge, measured in Farads, which is a key parameter in designing and understanding electrical and electronic circuits.