Chapter 1 Test A localized group of organisms that belong to the same species is called a A) biosystem B) community C) population D) ecosystem E) family Answer: C 2 Organisms interact with their environments, exchanging matter and energy. For example, plant chloroplasts convert the energy of sunlight into A) the energy of motion B) carbon dioxide and water C) the potential energy of chemical bonds D) oxygen E) kinetic energy Answer: C 3 The main source of energy for producers in an ecosystem is A) light energy B) kinetic energy C) thermal energy D) chemical energy E) ATP Answer: A 4 Which of the following types of cells utilize deoxyribonucleic acid (DNA) as their genetic material but do not have their DNA encased within a nuclear envelope? A) animal B) plant