SCIED 226 ECOLOGICAL PYRAMID AND BIOGEOCHEMICAL CYCLE PRE-TEST

What is an ecological pyramid?

• A measure of the biodiversity in an ecosystem.

• A tool used to measure the temperature in an ecosystem.

• A method for calculating the amount of rainfall in an ecosystem.

• A graphical representation of trophic levels in an ecosystem.

What is the purpose of an ecological pyramid of energy?

• To determine the population size of different species in an ecosystem.

• To measure the biodiversity in an ecosystem.

• To show the energy flow and trophic levels in an ecosystem.

• To study the interactions between organisms in an ecosystem.

What are the three types of ecological pyramids?

• pyramid of population, pyramid of productivity, and pyramid of trophic levels

• pyramid of diversity, pyramid of nutrients, and pyramid of interactions

• pyramid of growth, pyramid of resources, and pyramid of symbiosis

• pyramid of numbers, pyramid of biomass, and pyramid of energy

What is energy flow in an ecological pyramid?

• Exchange of energy between organisms

• Conversion of energy from one form to another

• Transfer of energy between trophic levels

• Movement of energy within a trophic level

What is a biogeochemical cycle?

• A biogeochemical cycle is a pathway by which a chemical element or molecule moves through both biotic and abiotic components of an ecosystem.

• A biogeochemical cycle is a term used to describe the movement of organisms within an ecosystem.

• A biogeochemical cycle is a pathway by which energy moves through an ecosystem.

• A biogeochemical cycle is a process by which only abiotic components of an ecosystem are involved.

What are the main elements involved in the carbon cycle?

• carbon dioxide, plants, animals, decomposers

• methane, algae, insects, predators

• nitrogen, bacteria, fungi, minerals

• oxygen, water, sunlight, rocks

Explain the process of photosynthesis in relation to the carbon cycle.

• Photosynthesis is the process by which green plants and some other organisms use sunlight to convert water into glucose, releasing carbon dioxide as a byproduct.

• Photosynthesis is the process by which green plants and some other organisms use sunlight to convert oxygen into carbon dioxide, releasing glucose as a byproduct.

• Photosynthesis is the process by which green plants and some other organisms use sunlight to convert carbon dioxide into glucose, releasing oxygen as a byproduct.

• Photosynthesis is the process by which green plants and some other organisms use sunlight to convert glucose into carbon dioxide, releasing oxygen as a byproduct.

What is the water cycle?

• The water cycle is the continuous movement of water on, above, and below the Earth's surface.

• The water cycle is the movement of water only on the Earth's surface.

• The water cycle is the process of water evaporating into the atmosphere and disappearing.

• The water cycle is the process of water turning into ice.

Describe the process of evaporation in the water cycle.

• Evaporation is the process by which water changes from a solid to a gas or vapor.

• Evaporation is the process by which water changes from a gas to a solid.

• Evaporation is the process by which water changes from a gas to a liquid.

• Evaporation is the process by which water changes from a liquid to a gas or vapor.

What are the types of Biogeochemical Cycles?

• Gaseous Cycles

• Sedimentary Cycles

• Gaseous and Sedimentary Cycles

• None of the above