Ecology Population, Community, and Ecosystem Dynamics

Open Ended

How do animal interactions affect each other and their environment?

Multiple Select

Indicate if the following examples show a population (A) or a community (C)

• All the zebras located in Kruger national park

• The zebras and the lions located in Kruger national park

• All the lions in Kruger national park

Multiple Choice

Which of the following levels will have the most individual species?

• population

• community

• ecosystem

• biome

Multiple Choice

What are biotic factors?

• Living things in the environment that affect one another

• Nonliving parts of the environment that affect organisms

• Factors that do not affect organisms

• Only plants in the environment

Open Ended

Why were other ocean ecosystems in trouble without otters?

Multiple Choice

Which graph shows close to a ZERO population growth rate?

• Graph A

• Graph B

• Both Graphs

• Neither Graph

Multiple Choice

Which pattern do you think sea otters follow?

• Clumped

• Random

• Uniform

• None

Open Ended

What is occurring in stage 4 of the age structure diagram?

Open Ended

The graph shows the population of sea otters in British Columbia. How has the number of adults (independents) changed over time?

Multiple Choice

What is the formula for calculating population growth?

• Birth rate - death rate + emigrants - immigrants

• Birth rate - death rate - emigrants + immigrants

• Birth rate + death rate - emigrants - immigrants

• Birth rate - death rate - emigrants - immigrants

Multiple Choice

What shape does the curve of exponential growth take?

• S-shaped

• J-shaped

• U-shaped

• V-shaped

Open Ended

What happened after the deer exceeded their carrying capacity?

Multiple Choice

Which of the following is a density-dependent factor affecting population growth?

• Hurricanes

• Wildfires

• Competition

• Natural disasters

Open Ended

Flooding from Hurricane Helene (Sep, 2024) Density dependent or density independent?

Multiple Choice

What process do autotrophs use to capture energy from the sun?

• Photosynthesis

• Chemosynthesis

• Respiration

• Fermentation

Multiple Select

Which of the following are types of heterotrophs?

• Carnivores

• Herbivores

• Omnivores

• All of the above

Open Ended

What type of consumer is a largemouth bass found in Lake Okeechobee?

Open Ended

What is the difference between a food chain and a food web?

Multiple Choice

What is the main purpose of an ecological pyramid?

• To show the number of organisms at each level

• To illustrate the flow of energy through a food chain

• To display the diversity of species

• To measure the biomass of organisms

Open Ended

Explain the significance of decomposers in an energy pyramid.

Open Ended

Can you explain why this pyramid is upside down?

Multiple Choice

Which of the following statements is true about the pyramid of biomass?

• Animals have more mass than plants

• Plants have more mass than animals

• Mass is evenly distributed

• Mass decreases at each level

Multiple Choice

What role do keystone species play in an ecosystem?

• They are the most abundant species

• They maintain balance and support biodiversity

• They are the top predators

• They have no significant role

Multiple Choice

Which of the following levels will have the most individual species?

• population

• community

• ecosystem

• biome

Multiple Choice

Indicate if the following examples show a population (A) or a community (C): 1) All the zebras located in Kruger national park 2) The zebras and the lions located in Kruger national park 3) All the lions in Kruger national park

• A

• B

• C

• D

Open Ended

How do animal interactions affect each other and their environment?