Ecosystem Dynamics and Interactions

The video explains how abiotic and biotic factors influence ecosystems. Abiotic factors such as temperature, water, light, and pollutants can affect species distribution and population sizes. Biotic factors, including competition and predation, also play a crucial role. The video highlights the dynamic relationship between predators and prey, emphasizing the balance needed for ecosystem stability.

What are abiotic factors?

• Non-living factors like temperature

• Living factors like predation

• Factors related to human activities

• Factors that only affect plants

How can temperature changes affect ecosystems?

• They have no effect on ecosystems

• They can cause species to migrate

• They only affect aquatic life

• They increase competition among species

What impact does light intensity have on plant species?

• It has no impact

• It affects the growth of all plants equally

• It influences the distribution of plant species

• It only affects plants in deserts

How do pollutants affect fish populations?

• They have no effect

• They increase fish populations

• They decrease fish populations

• They only affect freshwater fish

What is a biotic factor?

• A factor that only affects animals

• A non-living factor like water

• A living factor like competition

• A factor related to climate

How does competition affect species?

• It has no effect on species

• It only affects plant species

• It influences population size and distribution

• It only occurs between different species

What happens if predators overhunt their prey?

• The ecosystem remains stable

• The predator population decreases

• The prey becomes extinct

• The prey population increases

What is the relationship between predators and prey?

• Prey always outnumber predators

• Predators and prey have a dynamic relationship

• Predators help prey increase in number

• Predators and prey do not interact

What allows prey populations to recover?

• Increased predation

• Decrease in predator numbers

• Stable environmental conditions

• Introduction of new species

What is the result of a balanced predator-prey relationship?

• Overpopulation of predators

• Stable population sizes

• Extinction of prey

• Complete ecosystem collapse