Sistema del cuerpo humano y homeostasis

During a school science fair, Hannah, Aria, and Ava are presenting a project on human biology. They focus on explaining the main function of the respiratory system. What is it?

• Regulate body temperature

• Facilitate the exchange of oxygen and carbon dioxide.

• Control the nervous system

• Facilitate the digestion of food

During a biology class, Oliver asked which organ is responsible for pumping blood throughout the body in the circulatory system. Can you help him?

• The heart

• The liver

• The kidney

• The stomach

During a school sports day, Luna noticed that athletes frequently stretch and warm up their muscles before a race. What is the main purpose of this action in relation to the muscular system in the human body?

• Regulate body temperature

• Assist in the digestion of food

• Produce oxygen for the body

• Allow movement, maintain posture, and generate heat

Ethan, Abigail, and Aiden are building a robot for their science project. What is the main function of the structure they are designing for their robot, analogous to the skeletal system in the human body?

• Help in the digestion of food

• Provide structural support, protect internal organs, and enable movement.

• Regulate body temperature

• Produce hormones for growth

During a biology class experiment, Isla and Aiden were asked to identify which part of the respiratory system is crucial for the exchange of oxygen and carbon dioxide. Which part did they identify correctly?

• Alveoli

• Diaphragm

• Bronchi

• Larynx

During a biology class, Elijah is asked to explain which type of blood cells are responsible for transporting oxygen in the body. Which option should he choose?

• Platelets

• Leukocytes

• Hemoglobin

• Red blood cells or erythrocytes

During a school sports day, Samuel noticed that athletes could run, jump, and move swiftly. What allows them to do so in terms of their skeletal system?

• Regulate body temperature.

• Facilitate movement and flexibility of the body.

• Help in the digestion of food.

• Protect the internal organs of the body.

During a biology class, Maya is explaining to Mason and Nora about the human body's oxygen exchange process. She asks, 'Which organ of the respiratory system contains the alveoli where this exchange happens?'

• Stomach

• Liver

• Kidneys

• Lungs

During a school sports day, Michael wonders what type of tissue connects his muscles to his bones when he runs. Can you help him identify it?

• Adipose tissue

• Fibrous connective tissue (tendons)

• Cartilaginous tissue

• Bone tissue

During a biology class, the teacher asks Charlotte, Aria, and Sophia to explain the main function of the bone marrow in the skeletal system. What is the correct explanation?

• Production of insulin

• Production of blood cells

• Storage of minerals

• Regulation of body temperature