1) Eyes Spinal Cord Brain All of these are part of which organ system? A) circulation B) digestive C) nervous D) skeletal 2) The organ above is responsible for filtering wastes from the digestion of proteins and cleaning the blood of excess salts. It is found in the lower back. It is the and is part of the system. A) liver; excretory. B) liver; digestive. C) kidney; excretory. D) kidney; digestive. 3) Groups of skin cells form the epithelium, which lines organs and cavities in the body. The epithelium is MOST LIKELY a kind of A) cell. B) organ. C) tissue. D) organ system. 4) The human stomach is an organ that helps us digest food. The stomach is one of many organs involved in the process of digestion. Others include the esophagus, small intestine, pancreas, and gall bladder. What name is given to a set of organs that work together to perform a specific function? A) centriole B) phylum C) system D) tissue 5) The boxes show parts of the body at different levels of organization. Which picture would BEST fill box P? A) B) C) D) 6) The human body is composed of many systems that operate to maintain homeostasis. The digestive system is made up of many distinct parts that serve to perform the function of supplying the body with the necessary energy to perform all bodily functions. What is the primary role of the stomach in the human digestive system? A) reabsorbing water and compacting waste B) producing hormones to break down sugars C) using muscle contraction and enzymes to break down food D) moving nutrients from digested food into the bloodstream 7) Animals have different types of respiratory systems depending on the environment of their habitat. Fish live in the water and use gills to breathe. Humans who live on land, breathe air through their lungs. Identify the similarities between lungs and gills. A) Lungs and gills take in oxygen. B) Lungs and gills excrete carbon dioxide as waste. C) Oxygen is passed from the lungs and gills then circulated by the blood stream to other parts of the body. D) Lungs and gills take in oxygen, excrete carbon dioxide as waste, and oxygen is passed from the lungs and gills, and then circulated by the blood stream to other parts of the body. 8) A system is a set of interacting or interdependent components forming an integrated whole. The blood, heart, and blood vessels form the cardiovascular system. This system is responsible for transporting oxygen, nutrients, hormones, and cellular waste products throughout the body. What is the basic function of the blood in the cardiovascular system? A) the basic function of the blood is to pump blood throughout the body B) the basic function of the blood is to deliver lymph throughout the body C) the basic function of the blood is to transport blood throughout the body D) the basic function of the blood is to deliver nutrients throughout the body 9) Which represents the correct order of cell organization after cellular differentiation (simple to complex)? A) organ system→organ→tissue→cell B) cell→organ→organ system→tissue C) tissue→cell→organ→organ system D) cell→tissue→organ→organ system 10) Blood is a type of connective tissue. All of these make up blood tissue, except: A) platelets B) red blood cells C) white blood cells D) smooth muscle cells 11) This image shows how each of the three different types of human muscle cells appear under a light microscope. Which statement BEST summarizes why these human muscle cell types look different? A) The muscle cells may appear slightly different but the structure and function of each type is identical. B) The three types of muscle cells look different since they each have different DNA contained in the nucleus. C) The three types of muscle cells appear different since they are present at different stages of the organism's development. D) The three types of muscle cells appear different since they are specialized to perform different functions in the human body. 12) The body system seen here protects internal structures, provides support, and allows for movement. But this system does not work alone. In order for humans to move, this system must work together with the system. A) circulatory B) digestive C) muscular D) respiratory