Biodiversity
Classification
Functioning ecosystems
Population ecology
Changing ecosystems
100

It is a measure used in ecology to quantify the diversity or richness of species in a specific area or community. This index takes into account both the number of different species present and the relative abundance of each species

What is Simpson's Diversity Index?

100

The taxon level where two different species have the most features in common.

What is genus?

100

 It is the primary source of energy in most ecosystems.

What is the sun?

100

The species that has the greatest population density in a given area.

What is a dominant species?

100

This type of succession occurs in areas where soil remains after a disturbance, such as after a forest fire.

What is secondary succession?

200

This is the number of species within a defined region.

What is species richness?

200

This system is based on the structural characteristics that are similar between organisms.

Linnaean Classification

200

It is the process that converts atmospheric nitrogen into a form that plants can use.

What is nitrogen fixation?

200

Bacteria, rabbits and other r-strategist species have this type of growth.

What is exponential growth?

200

Ice core samples, deep sea sediments and the thickness of tree growth rings can all be used to determine past levels of this greenhouse gas.

What is carbon dioxide?

300

These examples restrict species living in an aquatic environment:

1) Oxygen does not dissolve easily in water, 

2) Access to light is limited 

3) High salinity in the water 

What are Limiting Factors?

300

One is the non-living factors that affect an organism’s ability to survive. The other is the living components of an environment.

What is the difference between abiotic and biotic?

300

This chemical equation is responsible for converting carbon dioxide into biomass.

What is respiration?

300

When you can't count all of them, this index is used to estimate population size.

What is the Lincoln index?

300

It starts with rocks and colonisers, but ends with a climax community.

What is primary succession?

400

This refers to the proportional representation of different species within a particular ecosystem or community.

What is relative species abundance?

400

By doing this fragile areas can be protected and land clearing prevented. It also enables an understanding of species diversity and the maintenance of natural resources in a sustainable manner.

What is naming ecosystems?

400

Ammonia, nitrate, nitrite, and nitrogen gas are all part of this process?

What is the nitrogen cycle?

400

These factors will all limit population growth and reduce carrying capacity - competition for resources, predation and disease.

What are biotic limiting factors?

400

It describes an intermediate community found in ecological succession in an ecosystem advancing towards its climax community.

What is a sere?

500

One is a specific location with a particular set of abiotic factors, where an organism usually lives. The other is the conditions in which the organism lives.

What is the difference between habitat and environment?

500

Any group of organisms are related by descent from a common ancestor.

New organisms arise when existing populations divide into two groups.

Changes in characteristics occur in lineages over time.

What are the three assumptions that underpin cladistics?

500

It is the role and space that an organism fills in an ecosystem, including all its interactions with the biotic and abiotic factors of its environment.

What is an ecological niche?

500

One refers to the number of the species that may be found in a region. The other refers to the numbers of each species in a region at a time.

What are species richness and species abundance?

500

This occurs when you build a highway through a forest that prevents the movement of fauna, isolates populations and causes reduced biodiversity.

What is Habitat fragmentation?

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