Exam 3: Ecosystems: What Are They and How Do They Work

The process by which water is evaporated from the surface of plants is called ____________________.

Photosynthesis

Match the items listed below with the appropriate choice -On the figure above, choose the letter that represents tertiary consumers.

Ozone, a gaseous O₃ molecule that filters out harmful UV radiation, is found in the

A grizzly bear eating blueberries is best categorized as which of the following?

Match the descriptive phrase below with its appropriate cycle. -Does not cycle through atmosphere

The metabolic process by which plants are able to draw ____________________ out of the atmosphere is known as photosynthesis.

Which one of the following contains all of the others?

Given the nature of the carbon cycle, it is possible that a single atom of carbon that is in your skin could have once been part of your own great grandmother, or even a dinosaur.

Lightning is one of the natural mechanisms by which atmospheric nitrogen fixation is accomplished.

With regards to productivity of an ecosystem, which of the following statements is accurate?

Ozone gas, a chemical in the atmosphere that helps filter out harmful UV sunlight, is located in the troposphere.

The major plant nutrient most likely to be a limiting factor is

____________________ is the process by which glucose is converted into useable energy in the presence of oxygen.

In the Sonoran desert of the southwestern United States, scientists observed that population clusters of a small cactus were very pronounced around nests of desert woodrats. They began to think the woodrat was somehow connected to the seeding of these cactus plants.After years of counting and observing the woodrat nests and cactus plants, they collected the droppings of the woodrats and took them back to the lab to analyze them to see if they contained seeds of the cactus. a.They also collected the droppings and transported them to other areas to see if this would bring about new population clusters of the cactus.They also programmed the data they had collected into a computer. a.The computer program allowed the scientists to predict that increases in the woodrat population would result in increases in the cactus population, and likewise a decrease in woodrats would signal an impending decrease in cactus. -Which phase of the above-described situation could be called computer simulation?

Biogeochemical cycles are driven by ____________________ and ____________________.

Aerobic respiration requires

The process by which ____________________ obtain their energy is photosynthesis.

Tropical rainforests typically are found near the Equator, and are considered centers of ____________________.

A community of different species interacting with one another and the physical and chemical factors of their nonliving environment is called a(n)