intro to ecology – Flashcards

Freshwater ecosystems can be found within terrestrial ecosystems.

The community is the lowest level of the biosphere's organizational hierarchy to include members of different species.

The principal characteristic that determines whether an aquatic ecosystem is classified as marine or freshwater is _______.

Which biome is prominent in North America?

Identify the biotic factor of an ecosystem from the following:

Environments are covered with manmade structures like roads, buildings, and sewers. Green spaces such as parks, backyards, and undeveloped lots are scattered in among the developed areas instead of all connected together. Plants and animals have to deal with exposure to toxins from vehicles and loss of habitat and food sources. These are all ways that _______.

In which biome would you be most likely to enjoy leaves changing color in the fall?

Which of the following is not a freshwater ecosystem?

Savanna is considered a transitional biome because it is intermediate between two _______.

What distinguishes the savanna and grassland biomes?

Which ecosystem contains 32% of the world's producers?

Scientists use specific levels of organization to analyze the biosphere. Which level of organization is seen in both a school of anchovies and a gaggle of geese?

Only the water of marine ecosystems contains dissolved salt.

In general the warmest biomes in the world are found _______.

The defining characteristic of deserts is their high daytime temperatures.

The proper order, from smallest to largest, for the levels of organization is _______.

The principal characteristic that determines whether an aquatic ecosystem is classified as marine or freshwater is _______.

Biomes are unique and do not appear more than once on Earth.

The biosphere is best described as the regions of Earth that support _______.

An ecosystem has experienced a recent decrease in its plant populations. Which of the following is a possible reason for the decline?

What determines the carrying capacity of an ecosystem?

Which of the following factors might be affected by a wildfire?

Which of the following would be considered a limited resource in the lower depths of the ocean?

Arrange the events of succession in their proper order.

Pioneer species survive by living on rocks and minerals.

Sunlight can be considered a food resource.

Secondary succession can only occur as a transition from primary succession.

A recent study has shown an increase in the number of predators in an ecosystem. Which of the following is not a possible cause for the growth?

Which of the following is not an example of an abiotic factor?

All animals are _______.

The main producers in aquatic environments are _______.

Which is not an advantage of using the Pyramid of Energy?

Which shows the correct order of increasing trophic level, from producer to tertiary consumer?

Less than 0.1% of the energy in a food chain generally makes it from the sun to quaternary consumers.

Which best describes the trophic level of an organism?

Which of the following has the most biomass?

Energy flow in an ecosystem is best represented by _______.

Which of the following would not reduce the carrying capacity of an ecosystem for a particular prey species?

The elimination of a predator has no negative impacts on that predator's prey species.

Which of the following is not true about Darwin's book On the Origin of Species?

Plants do not adapt to their environment because they do not compete for resources.

Organisms that have a physical trait that makes it easier for them to access food supplies are unlikely to pass on that trait to their offspring.

According to the simulation, _______ helps predators to survive by allowing them to sneak up on their prey.

Which of the following is a physiological adaptation?

In the guppie simulation, what happens to the brightest guppies when there are large numbers of predators?

Which of the following is not a part of Darwin's theory of evolution?

Which of the following is an example of a biochemical adaptation?

Which of the following is an example of a behavioral adaptation?

Organisms do not adapt as a result of competition for resources.