Ecosystem Interactions
Symbiotic interactions
Competition
Terrestrial Biomes
Aquatic Biomes
100

What is the difference between an ecosystem and a community?

ecosystems encompass both living and nonliving factors (biotic and abiotic factors)

100

The interaction of ants and acacia trees is considered an example of what kind of symbiosis?

Mutualism

100

Competition is a result of _______ resources.

Limiting

100

Hot, humid regions have _______ productivity and thus ______ biodiversity than cold or dry regions

Greater!

100
What distinguishes a wetland?

Freshwater and vegetative which causes a buildup of sediment 

200

Name 4 common abiotic factors...

examples include: Sunlight, Water, Wind, Temperature

200

Hermit Crabs sheltering in discarded snail shells is an example of....

Commensalism

200

Competition between two different species is _________ competition.

Interspecies 

200

Which biome is characterized with highest biodiversity?Why?

Rainforest Biome

200

What distinguishes a lake and a river?

The pressence of waves caused by a change in altitude in the landscape

300

Is a corpse considered biotic or abiotic?

Biotic, anything that came from something that was alive or was previously alive is biotic.

300

An artificially introduced bird that is not found commonly in the area providing protection for a native plant from beetles is considered what kind of symbiosis?

This would not be considered symbiosis as symbiosis is characterized as a long-term interaction. An artificially introduced insect is not considered to be a natural relationship and has not yet developed into a symbiotic relationship.

300

Species using limiting resources in different ways, places, or at different times, in an attempt to reduce competition is what?

Resource partitioning

300

What biome is characterized for having ideal farmland?

Grassland

300

Which marine zone would we expect to see a very low overall dissolved oxygen content? Why?

Aphotic because sunlight is unable to reach and therefore overall life would be at a low

400

Soil is considered what kind of factor?

Both Abiotic and Biotic because a soils richness is determined by bacteria and nutrients present in soil. Minerals and other sediment are also a major aspect of soil so due to this ambiguity is considered both biotic and abiotic.

400

Malaria is responsible for the largest amount of human deaths vectored by a single species of organism. Why is malaria considered an effective yet ineffective organism?

The properties of a good parasite are that the parasite benefits off of its host without killing it. Host dies therefore parasite dies.

400

Is Intraspecies competition beneficial or detrimental? Why?

Intraspecies competition increases the species overall fitness and efficiency. Therefore the species overall benefits at the detriment of the "unfit"

400

What Biome are we currently in and what characteristics does this biome generally have?

Dry scrub, hard leaf plants. Hot dry air with frequent fires. Known for having favorable climate for habitation. 

400

Why do estuaries and continental coastlines high in productivity and biodiversity?

Runoff of nutrients (nitrates and phosphorous) are the main determining factor for biodiversity

500
Dissolved oxygen available from photosynthesis is what kind of interaction?

Abiotic interaction made possible in plants. Photosynthesis is the combination of CO2, Water and Sunlight which are all abiotic in order to create sugar and oxygen as a byproduct. 

500

Describe the key aspects of predator-prey relationships shown within a graphical context.

Oscillating pattern with lag in which the prey will spike resulting in an increase in predation until the population of predators exceeds the sustainability of the prey and then subsequently dips which then increases prey survivability and so on and so forth...

500

Competitive exclusion is a phenomena in which two species cannot exist that compete for the same resources long term. Why is this?

Two different species competing for the same resource will eventual diverge into separate niches in order to increase efficiency of the energy consumed. 

Often, the more fit species will outcompete the other species which will "exclude" the unfit relative to the stronger species. 

500

Explain what the main distinctions for biomes the distribution of biomes within our biosphere and why they are main factors. 

Latitudinal zonation - exposure to sunlight

Altitudinal zonation - how close or far from sea level

500

Super Secret Question Time: if you get this wrong you get -1000 if you get right you get 1000!!!

ONLY THE ONE WHO CHOSE THIS QUESTION MAY ANSWER!!!! You are free to decline to answer. 

What aquatic environment is characterized with the lowest biodiversity? I DID NOT TEACH THIS!!!

SALT LAKES HAVE EXTREMELY LOW LIFE. Only sparse bacteria and fungi can survive within this high salinity environment.

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