About what percent of their food can invertebrates convert into new growth?

Sea-stars are crucial for the survival of a multitude of species present within the intertidal zone. As such, sea-stars are an example of a(n)

A windstorm knocks a tree down in a tropical rainforest, allowing for an increase in sunlight to penetrate the canopy. The ceiba tree is among the first species to take up residence. Which of the following BEST describe the ceiba tree?

A disruption in ecosystem community and structure is an example of a

Which of the following species has adapted to survive low-intensity surface fire?

The rate at which energy is stored in an ecosystem after energy is expended is referred to as

A swarm of locusts pass through Virginia Beach, disrupting the mangrove ecosystem. As such, the swarm of locusts are an example of a(n)

Which of the following two nutrients are most important for phytoplankton growth?

Organisms that must consume other organisms for maintenance and growth can be BEST described as

Photosynthesis and decomposition are examples of

Compositional and structural changes are at the core of

A chemical reaction occurs where the double bonds in an aromatic benzene ring are reduced to single bonds via hydrogenation. During the reduction of the benzene’s double bonds, energy is destroyed. Which of the following BEST disproves the aforementioned statement?

The rate at which sunlight is converted into organic compounds via photosynthesis is BEST described as

Near hydrothermal vents, inorganic nutrients are often converted into energy in the process of

The rate at which biomass is generated in an ecosystem is BEST described as

Disturbance events can be characterized by

The amount or quantity of material and energy in an ecosystem is known as

The interwoven set of relationships between trophic levels within an ecosystem is known as

Which of the following BEST illustrates an example of potential energy?

How many years ago was agriculture initially developed?

The dominant decomposers of dead animals are

Phosphorus is present only in trace amounts in the

Currently, the human population increases by approximately _____ each day.

According to the USAD Science Resource Guide, which of the following invasive species has decreased the time between successive fire events in many areas?

Which of the following BEST describes a heat trapping gas?

Around what year did the human population reach 1 billion people?

Which of the following is a building block of all living tissue?

Which of the following is NOT a major threat to biodiversity?

Prior to climate change initiated by the burning of fossil fuels, climate change was initiated by changes in the Earth’s

Large-scale spatial patterns and their relationship to ecological function is the focus of study in the field of

Earth’s atmosphere is composed of 80% of which of the following gases?

Higher diversity and a prevalence of generalist species are MOST likely to occur in

Which of the following invasive species carries avian botulism and was responsible for the decimation of thousands of sea birds?

The majority of nitrogen fixation occurs via

The majority of phosphorus on the planet is stored as

The dominant decomposers of plants are

Tropical biomes are the natural areas most rapidly being converted into _____.

In the middle of the eighteenth century, the relationship humans had with natural resources changed drastically as a result of

The Great Lakes region has been impacted by an invasive species that has outcompeted native species of clam and mussel. The invasive species is known as