Biology 1-1 Chapter 1 Re-Test Name: ____________________________________ Matching: On the left is a list of either the characteristics of organisms or unifying themes of biology. Match the correct characteristic or theme on the left with the example or definition given on the right. The choices on the left may be used more than once. Write the correct letter on the line. A. need for energy _____1. hollow hairs of polar bears help retain body heat and keep the bear’s temperature at the normal level _____2. the mouth, esophagus, stomach and intestines are all connected organs that help with the process of digestion B. systems of related parts _____3. the basic unit of all organisms C. response to environment _____4. some bacteria use sunlight and convert it to stored chemicals _____5. a Golden Retriever has a litter of puppies D. reproduction & development _____6. a mouse tries to run away from a cat in the yard E. homeostasis _____7. maintaining constant internal conditions despite external changes _____8. putting sunglasses on when the sun is bright F. made of cell(s) _____9. eating a healthy breakfast and lunch on the day of an after-school soccer game _____10. fresh water, rocks, mud, algae, bacteria, fish and many other things make up the ecosystem of Lake Monroe. Multiple Choice: Please select the answer that best answers the question or best completes the statement. 1. An individual living thing is called a(n) a. molecule. b. system. c. atom. d. organism. 2. Which of these characteristics is shared by all living things? a. They are made up of one or more cells. b. They make their own chemical energy. c. They have similar responses to light. d. They reproduce when one cell divides into two. 3. The basic unit of structure and function in all living things is a. the cell. b. an atom. c. DNA. d. a species 4. A possible answer to a question, which allows the experimenter to make a prediction, would be considered which step of the scientific method? a. conclusion b. observation c. hypothesis d. analysis of data 5. The maintenance of constant internal conditions in an organism is known as a. homeostasis. b. evolution. c. metabolism. d. adaptation. 6. A beneficial inherited trait that is passed on to future generations is a(n) a. stimulus. b. adaptation. c. system. d. species. 7. At which stage of scientific inquiry would a scientist find out if a hypothesis was supported by the data? a. observing b. testing hypotheses c. analyzing data d. collecting data 8. In an experiment, the condition that is manipulated by a scientist is the a. independent variable. b. dependent variable. c. constant. d. control condition. 9. Which phrase best describes a scientific conclusion? a. an educated guess b. a proven fact c. an initial observation d. the hypothesis is supported by the data 10. In the termite lab, the data or results we recorded (the behavior of the termites) would be considered the: a. independent variable b. constant c. dependent variable d. control Short answer: A woman who moved from the midwest to the desert noticed that her rose plants were not flowering. She wanted to see if planting the roses in richer soil would help them produce flowers. She knew that potting soil had many plant nutrients that were not found in the sandy soil of the desert. She decided to add some potting soil to one sandy area of her yard. She predicted that the rose bush planted in the area with sand plus the potting soil would produce more flowers than the area of the yard with only sandy soil. The table below shows how she set up her investigation: Plant Rose plant # 1 Rose plant # 2 Type of Soil Sand soil only Sand soil & Potting soil mix Amount of Water/day 1 Liter 1 Liter Amount of Fertilizer 2 grams 2 grams Number of flowers after 60 days 20 3 Answer the following questions about the data table above: 1. What is the dependent variable in this experiment? ______________________ 2. What is the independent variable in this experiment? _____________________ 3.-5. List 3 constants in this experiment:__________, _____________,___________ 6. Which plant(s) would be considered the control? _________________________ 7. Which plant(s) would be considered experimental? ________________________ 8. What was the hypothesis? ____________________________________________ 9. Which plant grew the LEAST?________________________________________ 10. What would the woman’s conclusion be? ________________________________