WorksheetsEcology Test
Total questions: 26
Worksheet time: 26mins
The following is an example of what type of symbiotic relationship: A flea on a dog
Parasitic
Mutualistic
Commensalism
Synnecrosis
The type of Symbiotic relationship in which one organism lives inside another organism: For example: the protists and bacteria inside the termite gut
Ectosymbiosis
Indosymbiosis
Endosymbiosis
Surface symbiosis
Ecology, as a science, is
the study of only living things in the environment
the study of all decomposers in the environment
the study of non-living things in the environment
the study of the interaction of living things, and non-living things, in the environment
An example of biotic factors in the environment would be all of the following EXCEPT
climate
fungus growing on a decaying tree stump
moss and lichens on a tree
pine cones and other seeds
An example of an abiotic factor includes all of the following EXCEPT
the chemical nutrients that plants need
different bird species that inhabit a wood lot
rocks and soil
rainfall
Which of the following is INCORRECT
all of the ecosystems in the world make up the Biosphere
many different animal species are part of the community in an ecosystem
populations are made up of many communities in an environment
many individuals of the same species make up the population
When there is a lot of pollution, rain can be acidic, harming plants and animals. What is this an example of?
a mutualistic type of symbiosis
an individual affecting a community
competition between a population and a community
an abiotic factor affecting an ecosystem
temperate grassland
nearly 1,400 species of birds live here
has rich topsoil, created by dead organic matter like leaves
has trees with cones
main plants are grasses
coniferous forest
has trees with cones
The soil is very dry and it is very hot
has trees that are shaped like lines
main plants are grasses
temperate deciduous forest
The temperatures are cold year round
has rich topsoil, created by dead organic matter like leaves
The top soil isn't rich
nearly 1,400 species of birds live here
tropical rainforest
nearly 1,400 species of birds live here
has trees with cones
An environmental study reporting on the way temperature, water quality, and minerals affect the animals in a salt marsh would be considering which level of organization?
community
individual organism
population
ecosystem
The five levels of organization in the environment, from smallest to largest level are
population, biosphere, ecosystem, community
organism, population, biosphere, abiotic elements, ecology
organism, population, biotic elements, abiotic elements, biome
population, community, ecosystem, biome, biosphere
If scientists are studying the egrets, herons, marsh crabs, and cordgrass, but not the water or rocks in a salt marsh, what level of organization would they be studying?
individual organism
population
community
ecosystem
What do several different populations living together make?
a community
an organism
a biosphere
an ecosystem
Grass is eaten by a prairie dog. The prairie dog is eaten by a coyote. This is an example of
a food chain
an abiotic element
a herbivore
a food web
In a food web arrows point in just one direction because they show
how energy goes to the animal that is eaten
which animals are related
which animal is bigger
how energy goes to the animal that is eating
Coyotes prey on prairie dogs. In order for the prairie dog population to survive, how many prairie dogs are needed compared to coyotes?
fewer prairie dogs than coyotes
about the same number of prairie dogs as coyotes
many more prairie dogs than coyotes
there is no relationship between the number of prairie dogs and coyotes
Organisms that can make their own food from sunlight are called
carnivores
decomposers
consumers
producers
In Life science a population is defined as
All the populations living and interacting within a particular geographic area
One organism
A population is the number of organisms of the same species that live in a particular geographic area, with the capability of interbreeding.
ecological community consisting of different populations of organisms that live together in a particular habitat.
Why do scientists study populations?
To determine how climate is changing
To better understanding, explaining, and predicting species distributions and population numbers
To better learn about abiotic factors
To better understand how individuals are interacting with each other
Which best describes the type of population sampling we are doing in the woodlot behind BHS?
Pitfall Traps
Tiny GPS transmitters- Mark and Recapture
Transect Sampling
Random Sampling
Which of the following is an INCORRECT statement that describes population sampling?
counting every individual within a large geographically area
Counting and identifying individual numbers in small areas and then extrapolating to estimate population totals
counting individuals within a certain area or volume that is part of the population’s habitat.
select a sample which is representative of the population
What method of population sampling did we use to sample the woodlot behind BHS?
Random Quadrat
Transect Sampling
Mark and Recapture
A biologist sampled a 2 hectare forest and counted 150 ants. Based on the sampling technique, how many ants could be found in the forest if the total area is 10,000 hectares?
Portion of population = Portion of area
total population total area
1,500,000
750,000
22,059
0.07
Why are there less higher level consumers?
There is not enough room for them in the ecosystem
There is less energy available
Hunters are removing too many from the population
