Living Organisms and Stimuli

What is a stimulus?

• Any object or event that elicits a response or reaction from an organism.

• A stimulus is a type of medication.

• A stimulus is a form of communication between organisms.

• A stimulus is a type of food or drink.

Give an example of a stimulus that plants respond to.

• sound

• light

• water

• temperature

How do animals respond to stimuli?

• Animals respond to stimuli through their muscular system.

• Animals respond to stimuli through their respiratory system.

• Animals respond to stimuli through their digestive system.

• Animals respond to stimuli through their sensory organs and nervous system.

What is the purpose of a sense organ in living organisms?

• The purpose of a sense organ in living organisms is to store nutrients.

• The purpose of a sense organ in living organisms is to produce energy.

• The purpose of a sense organ in living organisms is to regulate body temperature.

• The purpose of a sense organ in living organisms is to receive and process information from the environment.

What are the five senses in humans?

• sight, hearing, taste, smell, temperature

• sight, hearing, taste, smell, balance

• sight, hearing, taste, smell, intuition

• sight, hearing, taste, smell, touch

How do plants respond to light?

• Plants respond to light through hydrotropism.

• Plants respond to light through gravitropism.

• Plants respond to light through phototropism.

• Plants do not respond to light at all.

What is the role of hormones in living organisms?

• Hormones have no role in living organisms.

• Hormones regulate physiological processes in living organisms.

• Hormones only regulate psychological processes in living organisms.

• Hormones are only found in plants, not in animals or humans.

What is the difference between a positive and negative response to a stimulus?

• A positive response to a stimulus is slower than a negative response.

• A positive response to a stimulus is involuntary, while a negative response is voluntary.

• A positive response to a stimulus benefits the organism, while a negative response is detrimental.

• A positive response to a stimulus is caused by external factors, while a negative response is caused by internal factors.

What is the importance of responding to stimuli for survival?

• Responding to stimuli is not important for survival.

• Responding to stimuli is only important for certain organisms.

• Responding to stimuli is important for survival because it helps organisms communicate with each other.

• Responding to stimuli is important for survival because it allows organisms to detect and react to changes in their environment.

How do living organisms respond to changes in temperature?

• Living organisms respond to changes in temperature by hibernating.

• Living organisms do not respond to changes in temperature.

• Living organisms only respond to changes in temperature through behavioral adaptations.

• Living organisms respond to changes in temperature through various mechanisms such as thermoregulation, behavioral adaptations, and physiological responses.