Biology Unit 1

• What is the process by which organisms produce their own food using inorganic compounds in the absence of sunlight?

  Chemosynthesis
• What type of growth is represented by a graph showing population size increasing exponentially over time?

  Exponential growth
• What type of growth is represented by a graph that shows population size approaching a carrying capacity over time?


  Logistic growth
• If a graph has a y-axis with 20 boxes and the greatest value in the data is 94, what should the scale be?

  5
• What is the process by which plants use sunlight to convert carbon dioxide and water into glucose and oxygen?

  Photosynthesis
• Which type of organisms can produce their own food through processes like photosynthesis or chemosynthesis?


  Autotrophs
• What is the term for the loss of water vapor from the surfaces of plant leaves?


  Transpiration
• Which group of organisms plays a vital role in breaking down dead organic matter and returning nutrients to the ecosystem?

  Decomposers
• What is the continuous movement of water between the Earth's surface, atmosphere, and back to the surface called?

  Water cycle
• What term describes the process of organisms entering a population?

  Immigration
• In a food chain, what term is used to describe an organism that eats both plants and other animals?

  Omnivore
• What is an example of a symbiotic relationship where both species benefit?

  Mutualism
• What term refers to the number of individuals of a species living in a specific area?

  Population
• In an ecosystem, what is an organism called that captures and feeds on other organisms?

  Predator
• What term refers to the regulation of an organism's internal environment to maintain stability despite external changes?

  Homeostasis
• What is the relationship where one organism benefits at the expense of another?

  Parasitism
• Which term describes the interaction between two organisms where one benefits and the other is neither helped nor harmed?

  Commensalism
• What do you call the movement of individuals out of a population?


  Emigration
• Why do invasive species typically grow exponentially after they are introduced into a new environment?


  They do not have any predators yet and have not used any resources.
• What does the dotted line in a logistic growth graph represent?


  The population's carrying capacity
• What is the lag phase in the J curve of population growth?


  It is where a population is still growing slowly before it becomes exponential.
• What begins to happen during the lag phase of population growth?


  Pressure begins due to environmental resistance.
• What type of organism is most likely found at the bottom of a trophic pyramid?

  Producer
• What type of organism is found at the top of a trophic pyramid?

  Tertiary consumer
• How much energy does the organism on the second tier of a trophic pyramid receive from the organisms on the bottom tier?


  10%
• Which organisms at the top of the trophic pyramid have the least amount of energy available?


  Organisms at the top of the pyramid