Ecosystem Dynamics, Biodiversity & Species Interactions

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is the relative proportion of individuals within the different species in a given area.

Hotspot

A sudden disease causes the krill population to become severely reduced. Which organism in the food web below is most affected by this situation?

Hotspot

Which organism is a primary consumer that eats dandelions?

Match

Match the following

• Grass

• the frog and small bird would not have any food to eat and would starve. 

• Eutrophication is when nitrogen and phosphorus(from fertilizers) flows into ponds and lakes

• algae

• This leads to low oxygen levels(hypoxia) in the lake, and then many other organisms such as fish and plants will die.

Examine the food web. Which organism contains the greatest amount of stored energy?

What would happen if an insecticide was sprayed in the area?

What is the effect of eutrophication(excess nitrogen and phosphorus) on a pond ecosystem?

What organism will increase in number?

What will happen to the other organisms in the pond?

• Examine the food web. Which organism contains the greatest amount of stored energy?

• What would happen if an insecticide was sprayed in the area?

• What is the effect of eutrophication(excess nitrogen and phosphorus) on a pond ecosystem?

• What organism will increase in number?

• What will happen to the other organisms in the pond?

Multiple Choice

What role does the geosphere play in supporting life on Earth?

• It regulates climate

• It stores essential nutrients

• It filters harmful solar radiation

• It supports aquatic life

Match

Match the requirement to the example.

• Pelicans can be born with thin beaks or deep beaks.

• Parents with deep beaks have offspring with deep beaks.

• Pelicans with deep beaks can meet their need for food.

  Pelicans with thin beaks starve to death.

• In the future, more pelicans have deep beaks than thin beaks.

Variation

Inheritance

Selection

Adaptation

• Variation

• Inheritance

• Selection

• Adaptation

Dropdown

Humans have changed physically over millions of years. ​

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is a change in a species over the span on many generations.

Multiple Choice

Parasites and predators help maintain ecosystem stability because...

• They increase the population of all organisms so ecosystems become diverse

• They decrease the population of certain organisms to ensure no species overpopulates

• They increase the survival of all species

• Any of the above are possible

Multiple Select

What are the four components of biodiversity mentioned in the image?

• Species Diversity

• Genetic Diversity

• Ecosystem Diversity

• Functional Diversity

Poll

Which ecosystem do you think has the most biodiversity?

• Desert

• Rainforest

• Coral Reef

• Arctic

Categorize

Options (12)

No soil

Bare rock

Volcanic Eruptions

Glaciers retreating

New islands forming

Pioneers are grasses

Pioneers are lichens and mosses

Starts with soil

quicker

forest fires

hurricanes

abandoned property

Organize these options into the right categories

Primary succession

Secondary succession

Multiple Choice

What are the different types of species interactions mentioned in the image?

• Competition Among Species

• Predation and Survival

• Parasitism Impact

• Mutualism and Commensalism

Reorder

Place the following stages in the correct order from early to late succession.

• Lichens

• Grasses and small plants

• Shrubs

• Large variety of trees/bushes

• Climax community

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5

Multiple Choice

Refer to the diagram of the survivorship curve.
Which curve best describes an organism that invests a lot of energy in parenting?

• A
• B
• C
• this is not a survivorship curve

Multiple Choice

What are the main components of ecosystems and how do they interact with climate?

• Producers

• Consumers

• Decomposers

• Climate Change

Hotspot

Which line represents the carrying capacity of this population?

Hotspot

Select the area in the graph showing when population growth seems to reach the carrying capacity

Drag and Drop

This is a(n) ​

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growth curve. This applies when resources are ​

Placeholder

for a population.

Drag these tiles and drop them in the correct blank above

exponential

unlimited

logistic

limited

Drag and Drop

changes that occur in an area after a disturbance in an existing ecosystem

Placeholder

Drag these tiles and drop them in the correct blank above

secondary succession

primary succession

natural disaster

succession

Match

Match the following

• An ecosystem must start over from scratch. The soil is completely destroyed, and it takes longer for the ecosystem to rebuild.

• An ecosystem experiences a pause in growth due to a catastrophic event, the ecosystem takes awhile to rebuild.

• For example: a volcanic eruption

• For example: a wild fire.

Primary Succession

Secondary Succession

Primary Succession

Secondary Succession

• Primary Succession

• Secondary Succession

• Primary Succession

• Secondary Succession

Hotspot

Identify this populations carrying capacity

Multiple Choice

What are the two main factors that determine the climate of an area, such as that in Tokyo, Japan?

• precipitation and humidity
• temperature and air pressure
• wind conditions and humidity
• temperature and precipitation

Multiple Choice

What essential services do freshwater ecosystems provide?

• Water purification

• Habitat support

• Flood control

• All of the above