They
Select True or False. Evolutionary biologists believe that the extinction rate for species is increasing.
What is true?
List at least three ways in which human activity can adversely affect biodiversity.
habitat loss, overuse of resources, introduction of new species, and overuse of chemicals such as fertilizer.
A comparison of how many resources a person uses to how quickly those resources can be replaced is a measure of that person’s _____.
What is ecological footprint.
A relationship in which one organism is harmed, but the other is unaffected is called__
Amensalism
Select True or False. A greenhouse gas is a gas in the earth’s atmosphere that traps heat.
What can affect the climate of a biome?
What is elevation, large bodies of water, latitude
In the absence of limiting factors, organisms may experience a very rapid rate of growth known as __________ growth.
What is exponential?
Two organisms that share a habitat but have no direct effect on each other are exhibiting
What is neutralism?
Scientists measure global temperatures in an attempt to understand_______, the difference in Earth’s temperature and climate over long periods of time.
What is climate change?
A relationship in which one organism benefits, but the other is neither helped nor harmed is called…
What is commensalism?
Select True or False. Dead plant and animal material is known as biomass.
What is false?
A measure of how many resources a human population uses and the rate at which those resources can be replaced is the population’s
What is ecological foot print?
Trout growth is determined by food availability. A young wild trout might grow only three or four inches in length during its first year of life, while a well-fed hatchery trout can reach nine inches in the same amount of time. In this example, food availability is a(n) __________ for trout growth.
What is limiting factor?
Cleaner wrasses are small reef fish that get their food by picking parasites from the skin, gills, and mouths of other reef fish. The wrasses establish stations that other fish approach when they need a cleaning. What type of symbiosis is this an example of and why?
This is an example of mutualism, because both organisms benefit from the relationship: one fish is cleaned of parasites, and the other fish has a source of food.
What does not increase biodiversity?
A surge in one specific population