Be ! which of the following describes how the circulatory and the digestive systems to maintain homeostasis by working together?

a. by delivering oxygen to cells b. by having cells the fight infections c. by delivering nutrients from food to cells. d. by carrying waste to the kidneys

Dwayne filled a small balloon with air at 298.5 k. he put the balloon into a bucket of water, and the water level in the bucket increased by 0.54 liter. if dwayne puts the balloon into a bucket of ice water at 273.15 k and waits for the air inside the balloon come to the same temperature, what will the volume of the balloon be? assume the pressure inside the balloon doesn’t change. type the correct answer in the box. express your answer to the correct number of significant figures. the volume of the balloon at 273.15 k is liters.

Which of the following would be an accurate picture of the earth during the summer time of the northern hemisphere?

Which change to the system wood cause the freely-moving piston to lower?