DIRECTIONS: Read each item carefully. Then, shade the circle corresponding to the letter of your answer in the ANSWER SHEET provided. Use your pen for shading. 51. A group of tissues that work together to perform a similar function is called a cells b. tissues c. organs d. organ system 52. Known as the basic unit of life a. cells b. tissues c. organs d. organ system 53. It is a group of cells that performed similar function a. cells b. tissues c. organs d. organ system 54. The heart pumps blood that carries oxygen and nutrients to the different parts of the body. To which organ system does the heart belong? a. Circulatory b. Excretory c. Digestive d. Reproductive 55. Each part of an organ system plays a specific function. Which of the following structures DOES NOT match its function? a. Eyes: Eyesight c. Kidneys: Respiration b. Heart Circulation d. Stomach: Digestion 56. Which is the CORRECT sequence - from smallest to biggest - of the levels of biological organization in an organism? a. cell - tissue - organ-organ system - organism b. cell-organ system - organ - tissue - organism c. cell - organ - organ system - tissue - organism d. cell- tissue - organism - organ-organ system 57. Which of the following is an organ of the circulatory system? a. heart b. brain c. kidney d. muscle 58. Which of the following is TRUE? a. groups of organs working together are called cells. b. groups of organs working together are called organisms. c. groups of cells working together are called tissues d. groups of tissues, working together are called organ systems 59. Plants also have organ systems. Which plant organ does NOT belong to the shoot system? a. flower b. roots c. leaf d. stem 60. How do plants benefit from the root system? a. they obtain water and nutrients from the soil b. they provide strength and support c. they manufacture food d. they produce flowers -


​