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Semester 1 Review Life Science Unit 4 Lesson 1a Attendance Link: http://goo.gl/forms/JuXhvHo3Go 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 • Use taxonomic organization to identify and compare different organisms. • Describe how an organism displays each of the seven characteristics of life and how it must overcome challenges of life. • Describe how chemical functions of organisms start and are carried out within a cell and how material moves in and out of the cell. • Draw and label the parts of different cells and compare and contrast them. • Identify the cell as the basic unit of structure and function in all living things. • Compare major features and functions of animal systems and plant systems. • Compare and contrast single-celled organisms and multicellular organisms, including advantages of each. Which statement is true about a cell? A. B. C. D. Organs make all of the cells in an organism. Cells depend on the brain to divide. All cells come from other cells. During adulthood, the body stops producing cells. What is an organism? an individual animal, plant, or single-celled life form. What makes something an organism? It has to be alive. Which example is an organism? A. B. C. D. Fungus Granite Ruby Brain cell What are the two ways the plants reproduce? Sexually What is made by this type? Seed(s) Asexually What is made by this type? Spores What is the advantage of producing a spore over a seed? Spores can survive longer between creation and sprouting. How does a mushroom reproduce? A. B. C. D. It divides into acorns. It splits in two. It forms buds. It produces spores. A. B. C. D. A Venus flytrap produces flowers. Which life characteristic does this illustrate? Homeostasis Growth Reproduction Response to stimuli How can we create a new breed of a cat? By crossing two pure breed animals with the desired traits. Why can the offspring survive? Because all cats, no matter the breed, are still cats. They are all in the same species. This means they have the same # of chromosomes. Which animal could a bulldog mate with to produce offspring? A. B. C. D. Tabby cat Raccoon Beaver Sheepdog Name the levels of taxonomy in order from broadest to most narrow. Kingdom, phylum, class, order, family, genus, species The taxonomic reference for lemurs is Eukarya, Animalia, Chordata, Mammalia, Primate, Lemuridae, Lemur, catta. Lemurs belong to which phylum? A. B. C. D. Chordata Animalia Lemur Mammalia Using the dichotomous key, which class does this animal belong to? A. B. C. D. Invertebrate Mammalia Reptiles Fish Which is NOT a kingdom in the taxonomic classification system? A. B. C. D. Plantae Protista Molds Animalia What are the main types of organic molecules that we need in our bodies? Carbohydrate, Protein, Nucleic acid, and Lipids Which molecules are shown below? Which type of organic molecule is wax? A. B. C. D. Carbohydrate Protein Nucleic acid Lipid Which structural characteristic is found in both prokaryotic cells and eukaryotic cells? A. B. C. D. Circular DNA A nucleus Lysosomes A cell membrane Which best describes the function of the mitochondria in cells? A. B. C. D. Transports materials in and out of the cell Maintains homeostasis Creates energy for cellular use Acts as a structural support for the cell What is the result of mitosis? A. B. C. D. Two genetically identical nuclei Four genetically identical nuclei One sperm and one egg Two sperm cells and two eggs In plants, cellulose is a rigid tube that allows plants to maintain their form. Which similar structure and support system is found in insects? A. B. C. D. Musculoskeleton Cytoskeleton Exoskeleton Endoskeleton Think about what it takes to stand up and walk across the room. What body systems are directly being used. Skeleton and muscular systems What systems are being affected? Immune, circulatory, digestive, respiratory, etc. How do the muscles in the human body help with movement? A. The ligaments on the muscles push the bones apart. B. Muscles contract and thus pull on bones to cause movement. C. They help the bones bend. D. They squeeze the bones. Which animal uses its skin for respiration? A. B. C. D. Pelican Lion Toad Mackerel Which structures make it immediately possible for the exchange of gases to occur in a plant? A. B. C. D. Stomata Leaves and flowers Roots and petals Stems and petals Assignment • We will go over part b tomorrow. • Make sure you are keeping up your progress in the OLS. • After we review tomorrow, you will have until we get back on Jan 5th to get Units 1-4 mastered.