Directions: Fill in the blank with one of the words from the word bank. Each word is used once.

AutotrophNutrientEcological Pyramid

ParasiteFood WebTrophic Level

BiosphereParasiteGlobal Climate

Food ChainEcologyNitrogen Cycle

HeterotrophDentrificationEcological truth

Nitrogen CycleFossil Fuel

  1. is an example of a modern ecological issue.
  1. A is a straight line relationship between one organism to another.
  1. A is an example of interconnecting food chains.
  1. The process by converting atmospheric nitrogen into usable forms of living things is known as ___ .
  1. Bacteria in the soil convert “fixed” nitrogen back into nitrogen gas is

.

  1. Fuel like coal, oil, and gas that are made from carbon are known as .
  1. Any substance that can be used for energy or to make living tissues is called a .
  1. Feeing levels are an ecosystem’s .
  1. Organisms that live on other organisms and get their nutrition from a host are called .
  1. Organisms that can make their own food are called .
  1. The study of interactions between living things and their environment .
  1. Organisms that must eat other organisms are called .
  1. The part of the Earth where living things exist is called.
  1. The health of human society depends on the well being of all living things known as .
  1. Energy, Biomass, and numbers are three types of .

Directions: Write the word True or False. Correct the False statement to be true.

  1. Another name for an Autotroph is producer.
  1. Ecological pyramids show how energy is transferred from herbivores to primary producers to carnivores.
  1. Evaporation is when liquid falls to the earth as rain, snow or sleet.
  1. Most of the carbon on Earth can be found in the atmosphere CO2
  1. Autotrophs manufacture carbohydrates, lipids, and proteins from chemical nutrients like water, carbon dioxide, nitrogen, phosphorus, and potassium.
  1. Upwelling zones can support larger organisms because they have less nitrogen

Directions: In Column A Label the organisms either: decomposer, producer, herbivore, carnivore, scavenger, detritus, or omnivore. THEN in Column B, explain how an organism is classified into that category.

  1. Bacteria and Fungi

  1. Flower

  1. Tiger
/
  1. Lobster eating dead left over’s

  1. Dead plant matter

  1. Human

  1. Label the water cycle using the appropriate letter.

A-Condensation

B-Evaporation

C-Ground Water

D-Precipitation

  1. Fill in the Energy Flow Chart in the box

Directions: Use the diagram below to answer questions 31-33

  1. This diagram is an example of a
  2. What organism is a producer?
  1. What organism is a primary consumer?
  1. Use the picture to answer the question that follows.

This diagram is an example of a .

  1. For each of the three ecological research methods, explain when you would use that technique, then give an example.
Model
Observation
Experiment
  1. What are the two ecological truths?
  1. Why are food chains not an accurate representation of feeding relationships in an ecosystem?
  1. How is nitrogen returned to the soil?
  1. What all the ways that carbon enters the atmosphere?
  1. What happens to Energy when an organism eats another organism?