Coordination and Responses

During exercise, the body temperature will

• decreases

• increases

• maintain

What is produced by the skin to help cool the body?

• Urine

• Sweat

• Fat

In hot weather, the concentration of urine will _______

• increases

• decrease

• not change

During cold weather, our blood vessel will ___________

• constrict

• dilate

• stay same size

During cold weather, hairs on skin will erect because _______

• heat can release easily

• trap thick layer of air, less heat is released

• to maintain the heat

Which body systems that involved in the regulation of water content?

• Nervous system

• Excretory system

• Digestive system

• Endocrine system

Corrective mechanism that involved when we drink less water and sweat more are

• kidney will increase the volume of urine

• kidney will decrease the volume of urine

• feel thirsty

• kidney will produce more concentrated urine

Which part of the brain that regulates the equilibrium of internal environment of the body?

• cerebrum

• cerebellum

• hypothalamus

• brain stem

Which part of the leaf that control the opening and closing of stoma?

• stomata

• guard cells

• chloroplast

During the day, the stoma opens to ___________

• reduce water loss through transpiration

• increase the rate of transpiration

• allow gaseous exchange

• increase the rate of water absorption

• make the leaf wilts