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Explore the organization levels in the human body, the first line of defense against diseases, nutrient absorption processes, energy release, and more. Test your knowledge on body systems, organ functions, and respiratory processes. ###
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Which of the following levels of organization best represents the sequence from smallest unit to largest? A cell, organism, organ, tissue B cell, tissue, organ, organ system C cell, organism, tissue, organ system D cell, tissue, organism, organ
4. What is the body's first line of defense against disease? a. Enzymes b. Blood c. Antibodies d. Skin
How do nutrients, absorbed by the small intestine, travel to the individual cells of the human body? A The nutrients are absorbed from the small intestine into the blood and move through the circulatory system to the body cells. B The nutrients move from the small intestine directly to the liver and then move through the lymphatic system to the body cells. C The small intestine forces the nutrients into the kidneys, where the nutrients are then dissolved in fluids used by the body cells. D The body cells send nerve impulses indicating a lack of nutrients to the small intestine, and the small intestine sends the nutrients back to the cells.
The release of energy from glucose using oxygen is called A)respiration. B)breathing. C)exhalation. D)inhalation.
The diagram shows four stages in the development of a human after fertilization. Between stages A and D, which process must occur? (a) mutation (c) cell division (b) sexual reproduction (d) extinction
As a person exercises, carbon dioxide (CO2 ) levels in the blood increase. This causes the nervous system to signal which of these systems to respond? A. digestive and immune B. immune and respiratory C. respiratory and circulatory D. circulatory and endocrine
Which body system in humans transports materials needed for survival? • Circulatory • Digestive • Excretory • Respiratory
Cells require oxygen. Which system carries oxygen to cells throughout the body? • Lymphatic • Digestive • Nervous • Circulatory
The role of the excretory system in the human body is to • Produce food • Obtain oxygen • Remove wastes • Release energy
All of the following are involved in the elimination of bodily wastes except the • Skin • Lungs • Nerves • Kidneys
organism, digestive system Tissue, circulatory system Organelle, nervous system Tissue, digestive system Replace X and Y with the appropriate labels to complete the table
All of the following are parts of the nervous system except • Neurons • Ovaries • The brain • The spinal cord
All of the following are types of tissues in the human body except • Nerve tissue • Reproductive tissue • Connective tissue • Muscle tissue
The stomach, liver and pancreas all belong to what organ system in humans? • Respiratory • Digestive • Nervous • Excretory
Animals obtain oxygen from their environment in many ways. Which is not a structure used by an animal to obtain oxygen? • Gills • Lungs • Moist skin • Scales
Similar cells that are grouped together and perform a similar function are called • An organ • A tissue • A species • An organism
11. Which body organ removes excess water and wastes from the blood? a. kidney b. large intestine c. small intestine d. stomach
49. All of the following are contained within one human body system: spleen, bone marrow, lymph nodes, thymus gland, and white blood cells circulating in the blood. What human body system contains all of these components? a. the circulatory system b. the endocrine system c. the immune system d. the excretory system
16. Which systems are involved in throwing a ball? • a. skeletal, muscular, and nervous systems • b. digestive, endocrine, and immune systems • c. nervous, immune, and respiratory systems • d. immune, digestive, and integumentary systems
Complete the following analogyheart: circulatory systemlungs: _______________ • Digestive system • Circulatory system • Respiratory system • Immune system
24. How do prescription drugs travel throughout the body? a. through the blood b. through the muscles c. through the nerve cells d. through the bones
Which body system is needed to help a person move? a. digestive b. immune c. nervous d. reproductive
26. Which body part plays the largest role in controlling the nervous system? a. skin b. heart c. brain d. blood
Which of the following is the heart's function? a. pumping blood b. breaking down food c. removing wastes from the blood d. taking in oxygen and releasing carbon dioxide
Which activity causes the lungs to work their hardest? a. reading b. eating c. swimming d. sleeping