[ 223 ] Life Science GED ® TEST SCIENCE FLASH REVIEW • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Cells are the building blocks of life. Which of the following is NOT true about cells? A. Only some cells contain genetic material. B. Given the right conditions, cells will remain alive outside of the body. C. Cells respond to their environments. D. All cells contain a membrane that controls which molecules enter the cell. The graph shows the population of rabbits in one particular area. What is the carrying capacity of the rabbit population? Number of rabbits 60 40 20 5 May 1st June 1st Aug. 1st Sept. 1st Some plants have fungus colonies that live on their roots. The plants provide carbohydrates to the fungus in return primarily for phosphate and nitrogenous compounds. This is an example of: A. mutualism B. predation C. commensalism D. parasitism