What do all the biotic and abiotic factors in a given area make up?

Which of the following provides most of the energy in ecosystems?

A major regional or global community of organisms is called

What type of population growth is shown in the graph?

Based on these two graphs, what is the biggest difference between the grassland and forest biomes?

Which plant cell structures capture sunlight to produce sugars?

Which material’s recycling would reduce the largest portion of America’s trash?

Which statement accurately describes an interaction between plants and animals?

What products are produced during photosynthesis?

Which action would increase the amount of oxygen in a fish tank?

Living organisms and artificial devices both use and store energy with various methods and structures. Which of the following is MOST like a green leaf during the daytime?

Which of the following BEST describes the flow of energy in a cabbage plant?

Energy from the sun enters ecosystems through the transformation of light to chemical energy. This energy is available to different organisms based on trophic level. Which statement BEST describes the availability of energy for organisms in different trophic levels?

In the energy pyramid below, the producers’ energy begins at 20,000 units. By the time the energy reaches the tertiary consumer, how many units of energy would be left?

A keystone species often has more influence on an ecosystem than its abundance would suggest. Predict what might occur if the keystone species were removed from an ecosystem.

What effect would introducing a nonnative species into a new ecosystem have?

A population of warblers, a type of songbird, experiences a period of exponential growth. Which of these factors would be density-dependent limiting factor that could decrease the carrying capacity of the ecosystem for this population of songbirds?

There are 40 birds’ nests in the forest and 6 birds. Are the bird’s nests a limiting factor?

A lichen is a combination of fungus and algae that lives on the side of trees, rocks, and other materials. The fungus provides the algae with water and minerals and the algae uses the water and minerals to make food for both organisms. What type of relationship does the lichen represent?

On a small island, scientists observed and graphed changes in wolf and moose populations. From 1965 to 1970, which data pattern did scientists observe?

In the energy pyramid below, what should be in the trophic level labeled “A”?

When the hare population peaked in 1865 in the above graph, how was the lynx population affected?

Where does the energy the hawk uses come from?

21. What is the small bird a source of energy for?

21. What animals do the producers indirectly provide energy for?

The picture includes a number of different types of birds, mammals, reptiles, and fish. All of these different groups make up the ecosystems_________

The Amazon rainforest is the largest continuous rainforest ecosystem in the world. The average temperature is about 78°F, with heavy rainfall occurring throughout the year. In the rainforest you can find a variety of animals such as sloths, capuchin monkeys, giant anteaters, anacondas, gray mice, and monarch butterflies. During the past 40 years, close to 20% of the Amazon rainforest has been cut down – more than in all the previous 450 years after European colonization began.

Deforestation is a disturbance in the ecosystem. What concept is best represented when you are studying how the Amazon evolves over time after deforestation?

In the Amazon, the capuchin monkey drinks pollen from a flowering tree. The monkey benefits by receiving food, and helps the flowering tree pollinate when the pollen gets on its fur. The capuchin monkey moves on to a new blossom and helps transfer the pollen to the next flower. This relationship is an example of...

Some animals found in Oklahoma are deer, elk, antelope, rabbits, coyotes, wolves, foxes, prairie dogs, and American bison. What level of ecological organization best describes the animals above?

In 2010, the Oklahoma population was 3,751,616. By 2016, the population increased to 3,923,561. Which of the following might explain the increase in population?

Which of the following might be a limiting factor or limiting factors for the Oklahoma population to reach carrying capacity?

Yellowstone National Park is a national park located in the U.S. states of Wyoming, Montana, and Idaho. It was established by the U.S. Congress and signed into law by President Ulysses S. Grant on March 1, 1872. Yellowstone was the first National Park in the U.S. and is also widely held to be the first national park in the world. The park is known for its wildlife and its many geothermal features, especially Old Faithful Geyser. It has many types of ecosystems, but the subalpine forest is the most abundant. It is part of the South Central Rockies forests ecoregion. On February 19, 2017, an article was written about YouTuber Kat Martin, who has been uploading videos of the Yellowstone geysers for well over a year. She says that the geysers are now erupting more frequently and stronger than anything she has witnessed in the past. What is arguably the world’s most famous super volcano is overdue for an eruption, and it could wreak havoc on America and potentially even the whole world. While the Yellowstone National Park is stunningly beautiful, with brightly colored sulphuric hot springs and erupting geysers, it packs a mighty punch.

If the super volcano were to erupt, the blast would cover all of the surrounding areas in ash. Based on the diagram above, which list shows the sequence of secondary succession that would follow that eruption?

The bear population in Yellowstone National Park is represented below. Which type of population curve is shown, and what causes this type of growth?

The diagram represents an event that happened in Yellowstone during the Pinedale Glacial Maximum. Glacial ice covered the area over the Yellowstone Lake and removed all the soil and vegetation in the area. What event is being described and shown above?

According to the graph, which statement is true?

What type of relationship is depicted in the graph?

According to the graph, what must be true of the population trend for the six documented months?

During the 7^th month on this island, a new predator to organism 1 was introduced. How would this change affect organism 2?

The Andes Mountains are the longest continental mountain range in the world. They are a continuous range of highlands along the western edge of South America. The Andes extend from north to south through seven South American countries: Venezuela, Colombia, Ecuador, Peru, Bolivia, Argentina, and Chile. The Andes Mountains are the home to many diverse species of plants and animals. Wild horses roam on the vast grasslands and are free to graze on grass and small vegetation as they please. The horses also have access to freshwater streams that flow through the valleys of the mountains. In the same area, the local rabbit population is declining due to a virus that is spreading rapidly.

Suppose a wild horse needs 300 grams of food, 10 gallons of water, and 1 acre of land to roam. A certain habitat in the Andes Mountains has 6,249 grams of food, 320 gallons of water, and 8 acres of land available for the horses. Would 10 wild horses be able to live sustainably in this habitat?

The Andes Mountains are the longest continental mountain range in the world. They are a continuous range of highlands along the western edge of South America. The Andes extend from north to south through seven South American countries: Venezuela, Colombia, Ecuador, Peru, Bolivia, Argentina, and Chile. The Andes Mountains are the home to many diverse species of plants and animals. Wild horses roam on the vast grasslands and are free to graze on grass and small vegetation as they please. The horses also have access to freshwater streams that flow through the valleys of the mountains. In the same area, the local rabbit population is declining due to a virus that is spreading rapidly.

Which of the following would not be a factor in causing the wild horse population to reach its carrying capacity?

A virus spreads through a rabbit population and causes massive organ system failure. According to the graph above, which symbiotic relationship is represented by the virus and the rabbit?