Quiz 1.1 Ecosystems

Which statement about biodiversity is false?
1. As a population increases, its biodiversity increases as well
2. When an ecosystem is sustainable, biodiversity is usually preserved
3. Biodiversity refers the number of different kinds of organisms in an area
4. High levels of biodiversity are associated with a healthy environment
Beavers have created a lodge made of branches in the middle of this pond.

Beavers live around and in this pond, eating water lilies, berries and bark, and retreating to their lodge for protection from predators and bad weather.

What does this pond provide for the beavers?
1. Habitat
2. Biome
3. Biosphere
4. Biotic factor
Beavers have created a lodge made of branches in the middle of this pond.

All the interactions of the beaver with the pond, with the trees, with it's food sources and with its predators together are called its
1. niche.
2. community.
3. biotic factors.
4. biome.
Beavers have created a lodge made of branches in the middle of this pond.

What is the natural unit, consisting of all the beavers, plants, other animals and microorganisms along with all abiotic factors in this pond habitat, called?
1. Ecosystem
2. Niche
3. Biome
4. Community
This diver is examining a coral reef. Notice the incredible diversity of organisms.

The organisms that make up this reef are a good example of a
1. community.
2. population.
3. species.
4. biome.
Which list of ecological terms is correctly listed from smallest to largest group of individuals?
1. Organism>species>population>community
2. Organism>population>species>community
3. Community>population>species>organism
4. Population>species>community>organism
Which statement about ecosystems is false?
1. A group of interconnected ecosystems is a community
2. Ecosystems can vary greatly in size
3. A sustainable ecosystem generally must be a complete system
4. Ecosystems can exist within larger ecosystems
This alpine meadow is part of a biome that does not contain any trees, just hardy shrubs, grasses, moss and lichens.

Which biome does this alpine meadow represent?
1. Tundra
2. Boreal forest
3. Desert
4. Grasslands
What is not a component of the biosphere?
1. Magnetosphere
2. Atmosphere
3. Hydrosphere
4. Lithosphere
What is not an example of a biotic factor in an ecosystem?
1. Soil
2. Bacteria
3. Tree
4. Lizard