game questions
Which of the following is the formula for determining the rate of growth of a population
(birth rate + immigration rate) - (death rate + emigration rate)
Which of the following is the formula for determining the rate of growth of a population?
(birth rate + immigration rate) - (death rate + emigration rate)
Name a producer in a food web
Mushroom
What chapter was ecology
1
what is an example of a community?
All of the organisms living within a lake
Which of the following is an example of a community?
All of the organisms living within a lake.
Which of the following is an example of a population
All of the raccoons in a forest
a gas that is emitted by many energy consuming devices, such as cars and power plants. It is also the waste gas breathed out by most animals. Plants need this gas for the process of photosynthesis. Large emissions of CO2 gas has been linked to global warming because CO2 traps heat
Carbon Dioxide (CO2)
nonliving, physical features of the environment, including air, water, sunlight, soil, temperature, and climate
abiotic
another word for producer
autotroph
Organisms that obtain energy directly from photosynthesis are known as
autotrophs
Most people have pesticides and other environmental contaminants in their body. This is an example of
bioaccumulation
The populations of plants animals and microorganisms living and interacting in a certain area at a given time
biological community
a major biotic community characterized by the dominant forms of plant life and the prevailing climate
biome
the living organisms in an ecosystem
biotic
An organism that feeds only on heterotrophs is a(n)
carnivore
A relationship between two organisms of different species in which one benefits, while the other neither benefits nor is harmed
commensalism
the relation between two different kinds of organisms when one receives benefits from the other without damaging it
commensalism
any organism that has to consume or eat any other organism as food
consumer
Deforestation has the effect of
contributing to global warming
any organism, such as bacteria or fungus, that breaks down organic material as a source of food
decomposer
the study of how organisms interact with their environment
ecology
a system formed by the interaction of a community of organisms with their physical environment. Shows both abiotic and biotic factors
ecosystem
Starlings, sparrows and other European birds were introduced into the United States during the 1890's, when they were released in New York's Central Park by
evil Shakespeare fans
A biogeochemical cycle involves both living and nonliving components.
false
A grazing food web and a detrital food web can not interconnect.
false
Altitude and rainfall greatly influence the type of vegetation in a particular biome.
false
Cultural eutrophication is the leeching of minerals from the soil by acidic rain.
false
Energy cycles through an ecosystem, while chemicals (nutrients) flow through an ecosystem.
false
Excess phosphate in fresh water leads to an algal bloom, increased decomposers, and increased fish population.
false
Feces, urine, and even the death of an organism means substances are lost to the ecosystem.
false
Human activities have no significant effect on the nitrogen cycle.
false
In a sedimentary biogeochemical cycle, the element in question is withdrawn from the atmosphere and then returned to the soil.
false
In aquatic systems carbon dioxide is in the form of dissolved carbon dioxide.
false
Oxygen makes up about 78% of the atmosphere
false
The exchange pool for the carbon dioxide cycle is land plants
false
The niche of an organism is the place it lives within a community
false
higher up the pyramid the more energy
false
sun is everybody's main energy
false
in ecology, a community of organisms where each member is eaten in turn by another member
food chain
in ecology, a community of organisms where there are several interrelated food chains
food web
After a forest fire, the first signs of ecological recovery occur with the appearance of
grasses and small shrubs
another word for consumer
heterotroph
Food webs differ from food chains in that they
how more of the available feeding relationships in an ecosystem
Most extinctions occurring on the planet today are due to
loss of habitat
symbiotic relationship in which both species benefit from the relationship. example: hummingbird feeds off of and helps pollinate flowers
mutualism
During a particularly hot summer, the smallest change in temperature would likely be noted in
oceans
Organisms that can feed on autotrophs as well as on heterotrophs are known as
omnivores
Deforestation has the effect of
on land will increase, as will the average ocean temperatures
Most climate models predict that during this century, the average temperature
on land will increase, as will the average ocean temperatures
an individual living thing
organism
Which of the following IS NOT a greenhouse gas?
oxygen, O2
the relation between two different kinds of organisms in which one receives benefits from the other by causing damage to it
parasitism
Examples of symbiotic relationships include
parasitism commensalism mutualism
a group of organisms of the same species populating a given area
population
an organism that makes its own food such as most plants
producer
scavenger any organism that feeds off of already dead organism
scavenger
Food webs differ from food chains in that they
show more of the available feeding relationships in an ecosystem
Main source of energy for plants
sunlight
The processes of photosynthesis and respiration are tied together in
the carbon cycle and oxygen cycle
A foreign species of organism, introduced into a new ecosystem, will not become invasive unless
the population is sufficiently large to allow for natural breeding
Ultimately, all of the energy in most food chains or food webs comes from
the sun
A desert has a lack of moisture and is very dry.
true
A food chain shows a single path of energy flow.
true
Another name for the water cycle is the hydrologic cycle.
true
Denitrification occurs when anaerobic bacteria convert nitrate back into nitrogen gas.
true
Heterotrophs are also called consumers.
true
Human activities have impacted many of the Earth's ecosystems in both good and adverse ways.
true
The flow of energy with large losses between trophic levels can be depicted as an ecological pyramid.
true
all organisms are in the pyramids
true
biomes are everywhere
true
producers take in sunlight
true