Unit 3: Life Functions & Homeostasis Review

Maya, Luna, and Rohan are training for a marathon. They need to keep their body temperatures stable during the run. What is this ability called?

• The ability to maintain balance in the body

• The movement of molecules

• The process of diffusion

• The pH scale

Tags

NGSS.MS-LS1-3

Grace, Nora, and David are conducting a science experiment. They are trying to measure something using the pH scale. What are they likely measuring?

• The ability of David to maintain balance in his body

• The movement of molecules in Nora's experiment

• The concentration of hydrogen or hydroxide ions in Grace's solution

• The process of osmosis in their experiment

Maya, William, and Avery are running a marathon. What is the function of their respiratory system during this activity?

• To inhale oxygen and exhale carbon dioxide

• To regulate the release of hormones

• To remove waste from the body

• To break down food and absorb nutrients

William, Scarlett, and Samuel are learning about the human body in their biology class. Their teacher asks, 'What is the function of the circulatory system in our bodies?'

• To transport oxygen, nutrients, and waste in the blood

• To regulate the release of hormones

• To remove waste from the body

• To break down food and absorb nutrients

Sophia, Noah, and Samuel had a big meal for lunch. What is their digestive system's function after this meal?

• To regulate the release of hormones

• To remove waste from the body

• To inhale oxygen and exhale carbon dioxide

• To break down the food they ate and absorb nutrients

Tags

NGSS.MS-LS1-7

Grace, Harper, and Emma are having a meal together. What is happening in their bodies' digestive system when they are absorbing the nutrients and water from their food?

• The absorption of nutrients and water from food into the blood

• The process of osmosis

• The process of diffusion

• The movement of molecules

Tags

NGSS.MS-LS1-7

Samuel, Harper, and Emma are learning about the human body in their biology class. They are discussing the function of the excretory system. What do they conclude is the primary function of the excretory system?

• To break down food and absorb nutrients

• To remove waste from the body

• To inhale oxygen and exhale carbon dioxide

• To regulate the release of hormones

Avery, Noah, and Arjun are discussing the role of the immune system. Avery says it's to protect from pathogens and respond to infections. Noah thinks it's to remove waste from the body. Arjun believes it's to break down food and absorb nutrients. Another friend suggests it's to transport oxygen, nutrients, and waste in the blood. Who is correct?

• Avery: To protect from pathogens and respond to infections

• Noah: To remove waste from the body

• Arjun: To break down food and absorb nutrients

• Another friend: To transport oxygen, nutrients, and waste in the blood

Tags

NGSS.MS-LS1-3

During a biology class, Ava, Charlotte, and Benjamin were discussing the immune system. Benjamin asked, 'What are antibodies?'

• Cells that regulate the release of hormones

• Pathogens that can cause disease or infection

• Receptor proteins made by white blood cells

• Substances secreted from glands

Isla, Abigail, and Maya are studying for their biology exam. They come across a question in their textbook: 'What are pathogens?' They discuss and come up with the following options. Can you help them identify the correct one?

• Cells that regulate the release of hormones

• Receptor proteins made by white blood cells

• Bacteria, viruses, or other microorganisms that can cause disease or infection

• Substances secreted from glands