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Living Systems LIFE SCIENCE UNIT 3 LESSON 15 UNIT REVIEW Attendance Link: http://goo.gl/forms/bwl71L8H2e Expectations Required Class Connects Tuesday, Wednesday, & Thursday 1:30-2:30 pm Be active and participate in class. Be respectful to your classmates Be positive in the chat box and use it correctly. Have a working microphone! You will need it during the lessons and break out rooms. If you have a question, please place it in the chat box and repost it if I don’t see it. Objectives Describe ways individuals within a species can differ from each other and from other species. Describe the life cycle of an organism. Explain how different organ systems function and recognize that failure of any part may affect the entire system. Compare major features and functions of plant and animal systems. Explain how different organisms reproduce. Which phrase best describes the main function of the kidneys? A. filtering B. wastes from the blood fighting disease-causing organisms C. digesting carbohydrates and fats D. transporting nutrients to cells How about the stomach? It breaks down food to acquire nutrients. How about the capillaries? Gas exchange to the cells. Which body systems will be directly affected when suffering from smoking-related diseases where oxygen levels are depleted? Choose all answers that are correct. circulatory system B. skeletal system C. respiratory system D. endocrine system A. Why are these two systems affected? In a plant, the leaves allow gases to be exchanged. Which structure in the human body is similar in function to leaves? A.The pancreas B. The urethra C.The alveoli D.The nerves Which system transports the gases in both plants and humans? circulatory system Which organ is being described in this statement? If this organ malfunctions, all other body systems would be deprived of nutrients. A. stomach B. brain C.urethra D.lungs What would be the affect of the heart malfunctioning? Which statement is correct about insects that undergo complete metamorphosis? A. The larva's form resembles that of the adult. B. There are three distinct stages. C. During its life cycle, the insect changes its appearance dramatically. D. During the adult stage, the insect forms a cocoon. Which is produced immediately after a plant sperm cell fertilizes an egg cell? A. a zygote B. sweet nectar C. a spore D. plant nutrients Which terms are used for cells that are required for plants to reproduce sexually? A. eggs and roots B. offspring and clones C. antigens and antibodies D. eggs and sperm Which activity distinguishes the larva stage from the pupa stage of an insect? A. locating shelter B. making its own food C. reproducing D. feeding In plants, tubes transport nutrients throughout the plant. In humans, which parts carry out that function? A. blood vessels B. small intestines C. nerves D. alveoli Which describes a disadvantage of sexual reproduction? A. inherits traits for better survival B. is genetically identical to parent C. takes longer for new individual to develop D. has variation in genetic backgrounds Which statement best describes the process of asexual reproduction? A. A female bird lays an egg after it is fertilized internally by a male, but it develops externally. B. A seed is produced by a sunflower plant. C. After fertilizing an egg, a larva transforms into a butterfly. D. A bacterium splits into two separate organisms. What happens when the body cannot differentiate between pathogens and body cells? The excretory system will remove the pathogens. B. The immune system will target the body’s own cells. C. The organism will develop allergies. D. The digestive system will absorb the pathogens. A. Which part of a sperm cell is responsible for providing the cell's energy? A. flagellum B. cell wall C. mitochondria D. round head section In a plant, roots absorb water and nutrients. Those materials are then transported to other parts of the plant. Which statements describe the system in an animal that functions in a similar way? Choose all answers that are correct. A. The responsibilities of transporting materials throughout the animal's body are done by the circulatory system. B. An animal's blood moves nutrients throughout the animal's body like water in a plant's system moves nutrients. C. The endocrine system transports materials throughout the animal's body. D. Nutrients are moved in a plant by water, like the hormones that move nutrients throughout an animal's body. Which best explains what would happen to the muscular system if the digestive system broke down? A. No energy would be available to the cells, and the organism would not be able to move. B. Oxygen would not be removed, and the muscles would not be able to move. C. No carbon dioxide would be available to the cells, and the organism would die. D. An increase in wastes would be sent to each cell, and they would become infected. Which best describes the life cycle of an insect that undergoes complete metamorphosis? A. larva → egg → pupa → adult; adult still produces an exoskeleton regularly B. egg → larva → pupa → adult; adult still produces a cocoon C. egg → larva → pupa → adult; adult is fully formed and capable of reproduction D. egg → pupa → larva → adult; adult is fully formed, but is not capable of reproduction Which statement describes the life cycle of a grasshopper? A. incomplete metamorphosis B. stages of adolescence before adulthood C. complete metamorphosis D. begins with a seed or spore Why do two giraffes have spots with different shapes and patterns? A. exposure to sunlight B. different inherited traits are expressed C. different acquired traits D. color change based on diet Through which are wastes, nutrients, and gases primarily transported in a plant? A. within the seeds and roots B. within seeds and spores C. within the stem and roots D. within spores and flowers How does the immune system work together with the circulatory system to function properly? A. White blood cells move through the body (to parts where they are needed) in the blood vessels of the circulatory system to destroy pathogens. B. The circulatory system's arteries cause the immune system to work harder by bringing oxygen-depleted blood to the infection site. C. Red blood cells released by immune cells cause increased blood flow to the infection site; this increased blood flow brings other red blood cells to the area more quickly. D. The immune system's red blood cells fight and destroy foreign antigens. Assignment OLS Take and master the Unit 3 Assessment. Study Island Make sure that you have all of sections 2-4 complete. That is 10 questions per pathway. Tomorrow and Thursday we will be reviewing for the semester assessment.