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Biology Exam 4
Terms in this set (17)
Choose the BEST explanation for how human population growth adversely affects biodiversity.
habitat loss, tragedy of the commons, and exotic species
Which of the following correctly identifies an abiotic factor influencing the distribution of biomes?
elevation of a land mass above sea level
What on Earth is an ecosystem?
An ecosystem is a community of living organisms and their interactions and their interactions with their abiotic environment
The American Bald Eagle was on the Endangered Species list for many years. The bird's numbers have rebounded considerably. Study of these birds' numbers occurs at what level?
Choose the best definition for biosphere.
All of the ecosystems on the planet
What kind of ecosystem are exotic species especially threatening to?
What two extinction risks may be a direct result of the pet trade?
Overharvesting and exotic species introduction
Pollination is an example of:
an ecosystem service
The majority of water found on earth is:
Which of the following biomes is characterized by abundant water resources?
Tropical wet forests
The producer in an ocean grazing food is usually a ________.
A symbiotic relationship where both species benefit is called:
Which of the following is NOT a way that humans have increased the carrying capacity of the environment?
Using large amounts of natural resources
Species that have many offspring at one time are usually:
The population size of a species capable of being supported by the environment is called its:
Species with limited resources usually exhibit a(n) ______________ growth curve.
Which of the following methods will provide information to an ecologist about both the size and density of a population?
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