8TH Grade Final Exam Review Complete the following sample questions on a separate sheet of paper and use them as a study guide for the final exam. Refer back to your notes, tests, quizzes, homework, and labs to assist you. The most basic unit of life is the_________ Which of the following is found in plant cells but not animal cells? One characteristic shared by all organisms on Earth is that they all need________ The control center of the cell is the________ The function of the mitochondria is________ The jellylike material inside the cell is known as__________ The period of growth before cell division is__________ During which phase of mitosis does the nuclear membrane disappear? The reproduction of sex cells is known as_________ A human body cell has this number of chromosome__________ As a result of meiosis each human sex cell has this number of chromosomes_____ The correct order for the phases of mitosis is__________ With regard to the levels of organization, tissues working together make up_____ List the levels of organization from simplest to most complex. The control system made up of the brain, spinal cord and nerves is known as____ Another name for a nerve cell is a_________ A control system made up of gland is________ A fertilized egg cell is a________ The main organ of the circulatory system is the__________ The largest part of the brain is the_________ The space/gap between two neurons unknown as a________ The adrenal glands are most likely to release hormones when a person is feeling_________ The chemicals that the endocrine glands produce are known as_______ The name of the tubes that carry blood away from the heart are________ The function of the white blood cells is to________ The main function of the digestive system is to_________ Digestion is completed in the___________ The main organs of the respiratory system are the__________ The gas that is inhaled during respiration is____________ The skeletal system provides___________ Bones can function in the movement of the body mainly because the skeleton contains___________ Current science states that the age of the earth is approximately_________ Which of the following causes the tides of the earth? What evidence can scientists use to support the continental drift theory? What is the name given to the super continent? _____________ is most likely to begin the process in which rock is broken down into sediment? Ice forming in the crack of a cliff would cause__________ weathering. The wearing away of rock material and moving of rock material by natural forces is known as____________ A smooth and rounded rock has most likely been shaped by_________ A crack in the earth’s crust is a_________ The three types of faults are: __________ All igneous rocks are formed from___________ How ar Metamorphic rocks formed?____________ The magnitude of an earthquake is measured by_________ Earthquakes are caused by the movement along a__________ An earthquake on the ocean floor will most likely cause a___________ The liquid rock beneath the surface of the earth is called___________ Explain the significance of Pangaea. Through the process of erosion, the Colorado River is responsible for creating___ A structure made of materials from within the earth that build up around an opening in the earth’s surface__________ An educated guess is also known as_________ Based on data from an experiment, a scientist makes the statement that glass absorbs light. This statement is an example of a(n)_________ The scientific study of heredity is_________ The father of genetics is_________ A scientist would most likely study a Punnett Square to identify an organism’s ________ (hint: allele, trait, Dna, etc..) The sex chromosomes of a female are__________ (hint: XX or XY or YY) What is a genetic mutation? Are most sex linked traits are formed on the male or female chromosome?___________ A scientist places a purebud white flowered plant with a plant that is purebred for red flowers. She crosses another purebred white flowered plant with a plant that is purebred for yellow flowers. All of the offspring have white flowers. Which flower color is a dominant trait? In pea plants for height, tall is dominant over short. If a hybrid tall pea plant is crossed with a purebred short pea plant, what is the ratio of tall to short? A man using a long board to lift a tree slump is an example of what type of simple machine? A solid is unlike a liquid in part because a solid has a definite__________ The nucleus of an atom is made of__________ The smallest piece of matter is_________ Sound is produced by__________ The bending of light is known as_________ The force between two objects such as your feet rubbing against a carpet is known as___________ When water changes from a gas to a liquid it is known as_________ An object at rest will stay at rest because of___________ The amount of matter in an object is its__________ The unit of measure that force is measured in is_____________ Will electricity pass through a copper wire? Why? Newton’s 3rd law states that, “For every action there is an___________ A car moves 150 meters in 5 seconds what is the speed of the car? Open Ended Examples Describe the four states of matter and how matter can change states. Compare and contrast the processes of mitosis and meiosis. A. List and explain the phases of mitosis B. Name and explain the first step of the cell cycle. C. How are the results of mitosis and meiosis different. The cross of a purebred short pea plant with a tall pea plant resulted in 213 seeds. o All of the seeds were planted and 114 tall and 99 short plants resulted. o What are the possible genotypes of the tall parent plants? o What is the genotype of the short pea plant? o Use Punnett Squares to cross each possible tall pea plant with the short pea plant. o Using the results of 99 tall and 14 short, what is the actual genotype of the tall parent plant? Explain how this is possible. Explain the theory of continental drift. o Define continental drift. o How does plate tectonics factor into the continental drift. o Give two pieces of evidence to support the theory of continental drift. Discuss one of Newton’s Three Laws of Motion and provide at least one example of how the law is demonstrated in everyday life.