Dive Response

Frank was out of town for a few days and when he returned, he noticed that his plant was very wilted. He watered the plant and put it in the sun. A few hours later, he noticed that it the leaves on the plant had perked up and looked fine again. The image shows the plants before and after the water and exposure to sunlight. Why did this occur?

• The plants needed the water to help the leaves undergo photosynthesis.

• The plants needed to be put in the sun so the sunlight could attract the plant.

• The plants needed to be outside so it could be affected by the gravity of the Earth.

• The plants needed the water so the cells could expand and keep the plant upright.

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What is the primary physiological purpose of the dive response in mammals?

• To conserve oxygen during submersion

• To increase heart rate for faster swimming

• To enhance digestion while underwater

• To improve vision in dark waters

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Which of the following is NOT a component of the dive response?

• Bradycardia

• Peripheral vasoconstriction

• Increased metabolic rate

• Blood shunting

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During the dive response, what happens to the heart rate of a mammal?

• It increases significantly

• It remains unchanged

• It decreases significantly

• It fluctuates unpredictably

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Which animal is known for having an exceptionally strong dive response?

• Dolphin

• Penguin

• Elephant

• Sea turtle

How does peripheral vasoconstriction benefit a diving mammal?

• By increasing blood flow to the skin

• By reducing blood flow to non-essential organs

• By enhancing oxygen absorption in the lungs

• By maintaining constant body temperature

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What role does blood shunting play in the dive response?

• It directs blood away from the brain

• It increases blood flow to the limbs

• It prioritizes blood flow to vital organs

• It enhances blood flow to the digestive system

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Which scientific experiment could best demonstrate the dive response?

• Measuring heart rate changes in seals during submersion

• Observing fish swimming patterns in a tank

• Testing lung capacity in humans at rest

• Analyzing the diet of marine mammals

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What is the effect of the dive response on oxygen consumption?

• Oxygen consumption increases

• Oxygen consumption decreases

• Oxygen consumption remains constant

• Oxygen consumption becomes erratic

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In which environment is the dive response most beneficial?

• Desert

• Forest

• Ocean

• Mountain

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