7.13AB HOMEOSTASIS

Many birds migrate long distances when the seasons change. Which of the following is an environmental stimulus that would signal to the birds the changing seasons?

• Changes in the length of daylight.
• Increase in the population of edible plants.
• Decreased number of offspring per hatching event.
• Increase in annual precipitation levels.

Tags

NGSS.MS-ESS2-5

Which of the following is a response to smelling food?

• Rapid blinking
• Excessive sweating
• Increased hunger
• Sensitivity to sound

Pain is a stimulus in animals that leads to responses which help the animal to -

• find food in the habitat.
• recuperate after exercise.
• avoid harmful situations.
• fight serious infections.

While sitting in a room, a person notices that the temperature has become uncomfortably warm. The body will respond by -

• shivering.
• sweating.
• twitching.
• vomiting.

A student in gym class wants to measure how much his heart rate increases after sprinting 25 feet. The student records his resting heart rate at 12 beats per 10 seconds. After the student sprinted 25 feet, he recorded his heart beat at 130 beats per minute. Calculate the difference in the student’s heart rate (beats per minute) from his initial steady state.

• 58.0
• 62.0
• 56.0
• 64.0

A predator chases a prey animal. The prey is likely experiencing all of the following EXCEPT -

• rapid heartbeat.
• dilated pupils.
• increased sweating.
• onset of fever.

A plant growing in soil with a lack of water will -

• grow away from the Sun.
• produce more attractive flowers.
• shut down the vascular system.
• increase glucose production in the leaves.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Which of the following is a likely cause of vomiting?

• Ingesting spoiled food
• Cold temperatures
• Lack of water
• Excessive sunlight

After a period of strenuous exercise you may need to

• drink tea

• drink water with electrolytes

• drink a high energy drink

• drink soda