Homeostasis and Thermoregulation

Ishaan, Noah, and Elsie are studying biology. They come across the term 'homeostasis'. Ishaan thinks it's the way in which the body keeps the internal environment at a set point. Noah thinks it's the process of breaking down food for energy. Elsie thinks it's the movement of blood through the body. Who is correct?

• Ishaan: The way in which the body keeps the internal environment at a set point

• Noah: The process of breaking down food for energy

• Elsie: The movement of blood through the body

• None of them

Tags

NGSS.MS-LS1-3

What happens in the body when it gets too hot?

• Sweat is produced

• Shivering may occur

• Blood is diverted away from the skin

• Skin hairs become upright

During a winter camping trip, Arthur, Lily, and Sebastian experienced a sudden drop in temperature. What might happen in their bodies due to this extreme cold?

• They may start shivering

• Blood is diverted to their skin

• They start producing sweat

• Their skin hairs become upright

Tags

NGSS.HS-LS1-3

During a winter trek, Rohan noticed Ava's face turning pale. Poppy explained it's due to vasoconstriction. What is the purpose of this vasoconstriction in thermoregulation?

• To cool Ava's body down

• To increase blood flow to Ava's skin

• To make Ava produce sweat

• To decrease blood flow to Ava's skin

Tags

NGSS.HS-LS1-3

During a school trip, Leo, Ava, and Oscar were discussing the body's response to heat. They were curious about the role of vasodilation in thermoregulation. Can you explain it to them?

• It increases blood flow to the skin, helping the body to dissipate heat

• It decreases blood flow to the skin, reducing the body's ability to dissipate heat

• It produces sweat, which cools the body down when it evaporates

• It cools the body down directly by reducing the body's internal temperature

During a winter morning, Aarav was waiting for his school bus. He started shivering due to the cold. What is the effect of this shivering on Aarav's body temperature?

• It increases body temperature

• It decreases body temperature

• It has no effect on body temperature

• It makes the body sweat

Elsie, Matilda, and Aarav are playing a game of soccer on a hot summer day. They notice that they are sweating a lot. What is the role of this sweat in thermoregulation?

• It cools the body down

• It warms the body up

• It increases blood flow to the skin

• It decreases blood flow to the skin