WorksheetsHonors Ecology
Total questions: 40
Worksheet time: 20mins
A population is...
A group of one species in one area
Multiple species that live in one area
All of the living and nonliving things in an area
None of these
What is a host?
An organism that shares a resource
An organism on which a parasite lives
An organism that hunts prey
An organism that provides shelter for another organism
All the green plants that provide the energy for consumers.
Primary consumers
Decomposers
Producers
Herbivores
An organism that feeds on a living host
parasite
predator
herbivore
producer
Predation
An interaction in which both organisms benefit
An interaction in which one organism benefits and the other does not care
An interaction in which one organism kills another for food
An interaction in which one organism benefits and the other is harmed
Mutualism
An interaction in which both organisms benefit
An interaction in which one organism benefits and the other does not care
An interaction in which one organism kills another for food
An interaction in which one organism benefits and the other is harmed
The diagram shows the transfer of energy from one organism to another
Food web
Ecosystem
Food chain
Energy Pyramid
A non-living factor in an ecosystem
Biotic
Producer
Abiotic
Limiting factor
Commensalism
An interaction in which both organisms benefit
An interaction in which one organism benefits and the other does not care
An interaction in which one organism kills another for food
An interaction in which one organism benefits and the other is harmed
Habitat
An ecosystem
Place where an organism lives
Living conditions of organisms
Where an animal hunts
Limiting factor
Environmental factors that cause a population to decrease
Environmental factors that cause a population to increase
Environmental factors that cause an ecosystem to decrease
Environmental factors that cause an ecosystem to increase
Carrying Capacity
The maximum number of populations a biome can support
The minimal number of individuals in a population
The largest population that an environment can support
The smallest population that an environment can support
What is Primary Succession?
The series of changes that occur in an area where there is soil remaining from a previous ecosystem
The series of changes that occur in an area where there is no need for pioneer species
The series of changes that occur in an area keystone species are removed
The series of changes that occur in an area where no ecosystem previously existed
Nitrogen Cycle
The cycle in which nitrogen gas is changed into forms of carbon dioxide for photosynthesis
The cycle in which nitrogen gas is changed into forms of nitrogen that plants can use
The cycle in which hydrogen gas is changed into forms of water that plants can use
The cycle in which phosphorous changed into forms of nitrogen that plants can use
Reproductive Potential
The rate at which a species is attracted to another species
The rate at which a species can decrease a population
The rate at which a species can increase a population
The rate at which a species has more offspring than another population
What is Secondary Succession?
The series of changes that occur in an area where there is soil remaining from a previous ecosystem
The series of changes that occur in an area where pioneer species are needed to make soil
The series of changes that occur in an area keystone species is removed
The series of changes that occur in an area where no ecosystem previously existed
What is a keystone species?
The same as a pioneer species
A species that is vital to a healthy ecosystem
One of the first species in an area
These are producers, they are the first in the energy pyramid
Carbon Cycle
The cycle in which oxygen gas is changed into carbon dioxide to produce glucose for photosynthesis
The organic circulation of carbon from the atmosphere and change nitrogen gas into forms of nitrogen that plants can use
The organic circulation of hydrogen from the atmosphere which is used in organisms to make carbon
The organic circulation of carbon from the atmosphere into organisms and back again
What is an Invasive Species?
The early keystone species that are part of a new ecosystems
The early pioneer species that are part of a new ecosystems
A combination of a fungus and either an alga or an autotrophic bacterium that live together in a mutualistic relationship
Species that enter new ecosystems and multiply, out competing and harming native species and their habitats
A diagram that shows the transfer of energy in an ecosystem
ecosystem
food chain
environment
food web
All of the living AND non-living things in an area that interact with each other are called a/an __________.
community
habitat
ecosystem
population
How does the carbon in grass become part of a lion?
The lion eats the grass
Carbon from grass doesn't end up in a lion.
The carbon ends up in the lion's food chain.
The lion breathes in carbon given out by the plant
Pseudoscorpions often hitch rides on the backs of large beetles or true bugs. What is the ecological relationship?
Mutualism
Parasitism
Predation
Commensalism
What is the Competitive Exclusion Principle?
Two species can occupy exactly the same niche in exactly the same habitat at exactly the same time as a mutualistic relationship
No two species can occupy exactly the same niche in exactly the same habitat at exactly the same time
Two species always occupy the same niche in exactly the same habitat at exactly the same time for a long period of time
Every species shares a niche with another species to make sure they both can exist.
What is a Fundamental Niche?
Where an organism could live if no limiting factors were present
Where an organism really lives with limiting factors and competition
Where an organism makes its habitat
Where organisms with a mutualistic relationship live together.
What is a trophic cascade?
This is the same as a food chain
This is what is shown in an energy pyramid
When there is an addition or removal of prey. That creates more food for predators
When there is an addition or removal of top predators. That creates changes in the food chain with predator and prey
What is the first organism/step in primary ecological succession?
grasses
lichen
shrubs
weeds
Which of the following is an R-strategist?
dog
whales
insects
cows
Which of the following is NOT a density-dependent factor?
parasites
shelter
competition
earthquake
When an organism leaves an area this is known as ________ but when an organism enters an area it is known as
immigrant - emigrant
emigrant - immigrant
A growth curve associated with carrying capacity is known as
exponential
J-Curve
logistic
bar graph
When does clumped population dispersion occur?
When resources are localized and organisms group around them
When resources are randomly spread and organisms randomly spread out
When individuals are territorial about their resources and keep eachother apart
Chickens will eat both insects and seeds. Which term best describes this feeding pattern?
herbivore
detrivore
carnivore
omnivore
The mortality rate of organisms following a type I survivorship curve is __________.
fairly constant throughout life
higher in post-reproductive years
lower after the organisms become established
unrelated to age
Animals such as pandas are long-lived, mature slowly, and generally produce fewer offspring during their life spans but place a greater investment in each. What term is applied to this type of reproductive strategy
K-strategy
R-strategy
Which of the following describes the population of elephants in Kenya from 1973-1989?
(immigration + births) – (emigration + deaths) = 0
(immigration + births) – (emigration + deaths) = 1
(immigration + births) – (emigration + deaths) < 0
(immigration + births) – (emigration + deaths) > 0
What type of factor has an increasing impact as the population size increases?
density-independent
cohort effect
density-dependent
survivorship factor
The diagram below shows the cycling of nutrients in an ecosystem.
The removal of which of the following groups would cause an immediate decrease in the amount of energy flowing through the system?
producers
consumers
decomposers
inorganic nutrients
The energy at each trophic level in the pyramid of energy decreases by a factor of ____.
100
10
1
2
What does a food web represent?
The specific ways that mutualism is carried out.
A single pathway or energy flow between organisms.
How carnivores get their food.
All connections of energy flow throughout all organisms in a habitat.
