Community Ecology

A human & a Tape Worm: The tape worm gets a place to live in the intestines of the human and food from the human. The human loses weight and nutrients from the tape worm.

• Mutualism
• Commensalism
• Parasitism

What type of symbiosis?  Hummingbirds feed on nectar from flowers.  The flowers are pollinated by hummingbirds as they move from flower to flower.

• commensalism
• mutualism
• parasitism
• predation

Bird & Tree: A bird builds a nest in a hole in the trunk of the tree. It is protected from the rain and predators. The tree is not harmed or helped by the bird.

• Mutualism
• Commensalism
• Parasitism

A long-term interaction between different types of organisms is called

• symbiosis

• homeostasis

• mitosis

• parasitism

This image is showing

• Parasitism

• Mutualism

• Commensalism

• Herbivory

When goats were introduced to an island off the California coast, the goats lived in the same areas and ate the same plants as the native deer. The deer population dwindled and finally disappeared. This is an example of _____. (see textbook sections 37.1-13 for reference)

• commensalism

• succession

• coevolution

• interspecific competition

Biodiversity, aka biological diversity, usually refers to

• the same species in a general location

• the number of different species in a given area

• the number of animal species in a given area

• the number of plant species in a given area

What does biodiversity mean?

• Only one species in an area.
• The different amount of species in an area
• All abiotic life
• Nitrogen fixation

Which biome is more biodiverse?

• Desert

• Grassland

• Tundra

• Rainforest

Why is biodiversity so important?

• Because all species depend on each other to survive, so if one becomes extinct another species that relies on it could go extinct as well
• Because it’s better to have only one variation of each species.
• Because it better to only have a few species on Earth.
• Honestly, I have no idea what biodiversity is!