Stimuli/Tropisms/Homeostasis

What definition BEST describes Thigmotropism?

• Plants grow in the direction of light

• Plants respond to physical touch

• Roots grow with gravity, Stems grow against gravity

• Roots grow toward water

What definition BEST describes Hydrotropism?

• Plants grow in the direction of light

• Plants respond to physical touch

• Roots grow with gravity, Stems grow against gravity

• Roots grow toward water

Tags

NGSS.MS-LS1-5

What definition BEST describes Gravitropism?

• Plants grow in the direction of light

• Plants respond to physical touch

• Roots grow with gravity, Stems grow against gravity

• Roots grow toward water

What definition BEST describes Phototropism?

• Plants grow in the direction of light

• Plants respond to physical touch

• Roots grow with gravity, Stems grow against gravity

• Roots grow toward water

What is an Internal Stimulus?

• A stimulus that comes from inside of an organism

• A stimulus that comes from outside of an organism

• How an organism responds to a stimulus that results in a change in behavior

• A plant's growth response toward or away from a stimulus

What is the best description for a Response to a stimulus?

• A stimulus that comes from inside of an organism

• A stimulus that comes from outside of an organism

• How an organism reacts to a stimulus that results in a change in behavior

• A plant's growth response toward or away from a stimulus

What is an External Stimulus?

• A stimulus that comes from inside of an organism

• A stimulus that comes from outside of an organism

• How an organism responds to a stimulus that results in a change in behavior

• A plant's growth response toward or away from a stimulus

Tags

NGSS.MS-LS1-8

What is the BEST description of what a Tropism is?

• A stimulus that comes from inside of an organism

• A stimulus that comes from outside of an organism

• How an organism responds to a stimulus that results in a change in behavior

• A plant's growth response toward or away from a stimulus

What does this picture represent? 

• thigmotropism
• Phototropism
• Hydrotropism
• Gravitropism

Which of the following examples shows a response to an external stimuli?

• You have the flu, so you develop a fever

• A lion is tired, so it takes a nap

• A snake lunges at a rabbit, so the rabbit runs away

• You are exercising, so you begin to sweat