11/22/23

When an individual goes without eating for a day, his or her blood sugar level remains about the same throughout the day. This relatively constant condition is maintained by

• homeostasis

• digestive system

• respiratory system

• Nervous system

Which process is most directly responsible for maintaining internal stability in an organism when its environment is constantly changing?

• digestion

• reproduction

• feedback loops

• evolution

What usually results when an organism fails to maintain homeostasis?

• The water balance in the tissues of the organism stabilizes.

• 
  The organism becomes ill or may die.

• A constant sugar supply for the cells is produced.

• 
  Growth rates within organs become equal.

In humans, the maintenance of a stable internal temperature is a direct result of

• 
  diffusion of water and excretion of glucose to the external environment

• digestion of starches and absorption of protein from the internal environment

• transport of ATP and locomotion through the environment

• 
  detection of and reaction to stimuli in the environment

What is diffusion?

• when molecules move 
• when molecules move from a high concentration to a low.
• no movement 
• molecules move everywhere

Osmosis is the diffusion of __________.

• water
• glucose
• air
• passive transport

When blood is used by the body it must pass through which of the following organs before it is pumped back out to the body?

• Lungs
• Brain
• Stomach
• Skin

Which system provides shape and support, enables you to move, protects your internal organs, and stores minerals?

• skeletal
• muscular
• digestive
• nervous

Which systems main function is to allow movement of the body?

• muscular
• digestive
• skeletal
• excretory

 What is the main function of the respiratory system?

• take in oxygen and exhale waste like carbon dioxide
• move nutrients throughout the body
• take in carbon dioxide and exhale oxygen