Exam 16: Energy Flows and Nutrient Cycles

Respiration involves

Which of the following is NOT correct regarding nitrogen?

An organism capable of synthesizing its own food solely from carbon dioxide using sunlight or chemical energy is known as a(n)

A monocultural agriculture community is __________vulnerable to disturbance than an area with high biodiversity.

An orogeny that separates a once continuous population of a species is an example of vicariance.

Photosynthesis converts

A study of the spatial distribution of the coast redwood (Sequoia sempervirens)and the environmental factors that control that distribution would be an example of a topic studied in

Increased foliage cover in parts of Australia has been attributed to which of the following climate change related phenomena?

Which of the following is NOT a measure of biological diversity?

-In which of the following terrestrial ecosystems would one tend to find the highest net primary productivity?

Consider the ecology of the region in which you live.Which organisms are the primary producers,primary consumers,secondary consumers,and tertiary consumers?

Habitat loss,pollution,resource exploitation,climate change,and introduction of non-native species are among the greatest threats to biodiversity.

In food webs,toxic chemicals tend to accumulate and concentrate most in the

The first species to colonize previously disturbed or damaged ecosystems are called a(n)

Approximately _________of the light energy arriving at the surface of a leaf is useful to chlorophyll.

The origin of Earthʹs biological diversity is embodied in

Studies have shown that __________biodiversity in an ecosystem leads to__________ long -term stability and productivity.

The openings on the surfaces of plant leaves through which gases move into and out of are known as

According to the competitive exclusion principle,no two species can occupy the same niche.

Communities are not static,rather they undergo changes over time due to various natural disturbances.