Animal and Plant Responses to Stimuli

The video explains how various organisms, from eagles to plants and microorganisms, respond to stimuli in their environment. Eagles use their keen sight to catch fish, while plants exhibit phototropism and geotropism. Animals like rabbits and gazelles have instinctive survival responses, and birds migrate seasonally. Even simple organisms like amoebas react to stimuli, demonstrating that response to environmental changes is crucial for survival and adaptation.

What is the primary stimulus for the eagle when hunting?

• The sound of water

• The sight of a fish

• The smell of prey

• The movement of trees

What is phototropism in plants?

• Growth towards gravity

• Growth towards light

• Growth towards water

• Growth towards sound

How do sunflowers respond to sunlight?

• By growing taller

• By changing color

• By closing their petals

• By turning their heads to follow the sun

What is geotropism?

• A plant's response to light

• A plant's response to gravity

• A plant's response to water

• A plant's response to temperature

How does a rabbit typically respond to the presence of a predator?

• By making noise

• By running away

• By hiding underground

• By freezing in place

What triggers birds to migrate?

• Change in daylight hours

• Change in wind patterns

• Change in temperature

• Change in food availability

How do earthworms respond to light?

• By burrowing deeper

• By moving away from it

• By staying still

• By moving towards it

What do single-celled organisms do when they encounter a harmful substance?

• Ignore it

• Engulf it

• Move towards it

• Move away from it

What is a common response of single-celled organisms when they detect food?

• They move away from it

• They move towards it

• They divide

• They change shape

Why is the ability to respond to stimuli important for organisms?

• It helps them grow faster

• It helps them adapt and survive

• It allows them to reproduce more

• It makes them more colorful