BMS 117 Test 1 Review

BMS 117 Test 1 Review - Test #1 Review Page 17 1.1 The...

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Test #1 Review Page 17 1.1 The Characteristics of Life Living things, often called organisms, share common characteristics. Organisms Have levels of organization—atoms, molecules, cells, tissues, organs, organ systems, organisms, populations, community, ecosystem, and biosphere Take materials and energy from the environment Reproduce Grow and develop Are homeostatic Respond to stimuli Have an evolutionary history and are adapted to a way of life 1.2 Humans Are Related to Other Animals Match Key Terms to Definitions a. _____________ Zone of air, land, and water at the surface of the Earth in which living organisms are found. b. _____________ Smallest unit of a human being and all living things. c. _____________ Concept supported by a broad range of observations, experiments, and conclusions. d. _____________ An internal environment that normally varies within only certain limits. e. _____________ An artificial situation devised to test a hypothesis. Page 18 1. Name the 11 levels of biological organization from simple to complex, and briefly descrbie each 2. What is homeostasis and how is it maintained? Give some examples that show how systems work together to maintain homeostasis.
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How do human activities threaten the biosphere? (9-12 match each description with the correct characteristic of life from the key) Key: a. Life is organized b. Living things reproduce and grow. c. Living things respond to stimuli. d. Living things have an evolutionary history. e. Living things acquire materials and energy. 9. Human heart rate increases when scared. 10. Humans produce only humans. 11. Humans need to eat for building blocks and energy. 12. Similar cells form tissues in the human body. 13. The level of organization that includes two or more tissues that work together is a(n): a. organ c. organ system b. tissue d. organism 14. The level of organization most responsible for the maintenance of homeostasis is the __________ level. a. cellular c. organ system b. organ d. tissue 15. The level of organization that includes all the populations in a given area along with the physical environment world be a(n) a. community c. biosphere b. ecosystem d. tribe 16. Which best describes the evolutionary relationship between humans and apes? a. Humans evolved from apes.
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BMS 117 Test 1 Review - Test #1 Review Page 17 1.1 The...

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