Coordination and Responses

Adam measures his pulse rate before running. What is the changes on his pulse rate after running ?

• Increases

• Decreases

• No changes

How do plants reduce water loss ?

• Bigger leaf surface

• The plant rolls up its leaves

• The larger number of stoma on the top of the leaf surface

Which of the following act is true for reptiles during the changes in cold weather ?

• Increases heartbeat

• Increases the rate of metabolism

• Faster movement

• Slower movement

Which of the following act is true for reptiles with the changes in hot weather ?

• Slow heartbeat

• Fast heartbeat

• Low rate of metabolism

• Slower movement

Transpiration cools a plant on a hot day.

• True

• False

What is the corrective mechanism occurred when body temperature decrease from the normal ?

• Sweating

• Hair bends

• Blood vessels will contract

• The skeletal muscles are not active

What are the main systems in the body that involved in homeostasis ?

• Digestive system and endocrine system

• Endocrine system and excretory system

• Respiratory system and skeletal system

• Skeletal system and excretory system

Which of the following organisms can maintain body temperature, even though the temperature in the surroundings changes significantly?

• Toad

• Fish

• Egret

• Crocodile

Which of the following process involves water loss to the surroundings by the plants ?

• Evaporation

• Respiration

• Transpiration

• Photosynthesis

Tags

NGSS.MS-ESS2-4

Which of the following statements is the best to explain the need for homeostasis to the organism ?

• Avoid sudden death

• Maintain constant body temperature

• Ensure that all enzymes involved in chemical reactions work well

• Provides optimum internal environment for efficient metabolic activity

Tags

NGSS.HS-LS1-3