Pop & Eco Inv. 7 Test

Front

What is a food web?

Back

A food web is a complex network of feeding relationships among various organisms in an ecosystem, showing how energy and nutrients flow through different species.

Front

How does a drought affect deer populations?

Back

A drought can limit the availability of food sources like shrubs and grasses, which can directly decrease the deer population.

Front

What is predation?

Back

Predation is the interaction where one organism (the predator) hunts and eats another organism (the prey), affecting the population dynamics of both species.

Front

What role do rabbits play in the food web concerning deer?

Back

Rabbits can compete for food resources with deer, and if they eat shrubs, they can limit the food available for deer, potentially decreasing the deer population.

Front

What is the impact of disease on prey populations?

Back

A disease that affects a prey population, like rabbits, may not directly impact the predator population, such as deer, unless it significantly alters the food web.

Front

What factors can limit a population in an ecosystem?

Back

Factors that can limit a population include availability of food, predation, disease, and environmental conditions.

Front

Why do algae populations decrease in warmer months?

Back

Algae populations may decrease in warmer months due to increased predation, as more predators are active and feeding on them.

Front

What is the relationship between resources and population growth?

Back

The availability of resources, such as food and habitat, directly influences population growth; limited resources can lead to decreased population sizes.

Front

What is the significance of understanding population interactions in an ecosystem?

Back

Understanding population interactions helps in managing ecosystems, predicting changes, and conserving species by recognizing how different organisms affect each other.

Front

What is an example of a limiting factor in an ecosystem?

Back

A limiting factor can be anything that restricts the growth of a population, such as food shortages, habitat loss, or extreme weather conditions.