Biology and Physics Concepts Assessment

The video covers various scientific phenomena: why dead whales explode due to gas buildup, how dolphins sleep using unihemispheric slow-wave sleep, the dangers of dry ice due to its sublimation and extreme cold, the benefits of morning stretching for muscle flexibility and blood flow, and why red is used as a danger signal due to its long wavelength and visibility.

What causes the explosion of a dead whale on a beach?

• Sharks attacking the whale

• High tides hitting the whale

• Gas buildup due to decomposition

• Firecrackers inside the whale

Why is it advised not to stand on a dead whale?

• It might sink into the sand

• It is disrespectful

• It might attract sharks

• It could cause an explosion

How do dolphins manage to sleep while staying alert?

• By sleeping underwater

• By sleeping in groups

• By shutting down one hemisphere of the brain

• By sleeping with both eyes open

What is the main danger of handling dry ice?

• It can attract insects

• It can cause severe frostbite

• It can change color

• It can melt quickly

Why should dry ice not be stored in airtight containers?

• It can cause the container to shrink

• It can cause the container to freeze

• It can cause the container to explode

• It can cause the container to melt

What is the term for the morning stretch and yawn?

• Calculation

• Pandiculation

• Articulation

• Simulation

What happens to our heart rate when we stretch in the morning?

• It decreases

• It stops

• It remains the same

• It increases

Why is red used as a danger signal?

• It is the brightest color

• It has the longest wavelength

• It is the easiest to produce

• It is the most attractive color

What is the relationship between wavelength and light scattering?

• Wavelength does not affect scattering

• Shorter wavelength, more scattering

• Longer wavelength, more scattering

• Longer wavelength, less scattering

How does red light behave in fog or smoke?

• It gets scattered

• It gets absorbed

• It passes through easily

• It changes color