Unit 6, Lesson 3 Test your Knowledge

Front

What is biomimicry?

Back

Biomimicry is the design and production of materials, structures, and systems that are modeled on biological entities and processes.

Front

What is echolocation?

Back

Echolocation is a method used by some animals, like dolphins and bats, to locate objects by emitting sound waves and listening for echoes.

Front

What is an echo?

Back

An echo is a sound that is reflected off a surface and heard again.

Front

What is binary code?

Back

Binary code is a system of representing text or computer processor instructions using the binary number system, which uses only two symbols: 0 and 1.

Front

Why do whales use echolocation?

Back

Whales use echolocation to orient themselves and find food.

Front

What is the Doppler effect?

Back

The Doppler effect is the change in frequency or wavelength of a wave in relation to an observer who is moving relative to the wave source.

Front

What is camouflage?

Back

Camouflage is a method of hiding or disguising an object or organism to blend in with its surroundings.

Front

What is symbiosis?

Back

Symbiosis is a close and long-term interaction between two different species, which can be beneficial, neutral, or harmful.

Front

What are sound waves?

Back

Sound waves are vibrations that travel through air, water, or solid materials and can be heard when they reach a person's or animal's ear.

Front

What is frequency in terms of sound?

Back

Frequency refers to the number of waves that pass a point in a given period of time, affecting the pitch of the sound.