WorksheetsAre you smart than an Administrator *Ecology Edition*
Total questions: 15
Worksheet time: 11mins
The model shows part of how carbon is cycled.
The green box in the model represents organisms that remove carbon dioxide from the atmosphere to recycle it.
Which BEST describes these organisms?
producers that carry out photosynthesis to make carbon-rich sugars
bacteria that combine carbon dioxide with nitrogen to make nutrients
fungi that break down oxygen and release carbon dioxide in exchange
consumers that make energy by taking in carbon dioxide when they inhale
What is a group of individual organisms that belong to the same species?
Community
Ecosystem
Biome
Population
The difference between a habitat and a niche is that a niche is
The specific functional role of an organism.
The organism's preferred habitat.
The kind of place an organism occupies.
None of the above
Some birds are known as honeyguides because humans often follow them to wild beehives. When the humans take the honey from the hives, the birds are able to feast on the honey and the bees as well.
This type of relationship between the humans and the birds can best be described as
Mutualism
Commensalism
Parasitism
Herbivory
Select two substances that a green plant must obtain from its environment to carry on photosynthesis.
glucose
carbon dioxide
chlorophyll
water
oxygen
Which of the following has had the most negative effect on Earth's ecosystems?
establishment of air pollution standards
increase in human population
recycling glass, plastic, and metals
use of natural predators to control pest insects
The images below represent four populations in a food chain.
Which sequence best represents the transfer of energy between these organisms?
Toads → Predatory insects → Herbivorous insects → Plants
Predatory insects → Herbivorous insects → Plants → Toads
Plants → Herbivorous insects → Toads → Predatory insects
Plants → Herbivorous insects → Predatory insects → Toads
Assume that the producers in this ecosystem have 100,000 kcal of stored energy.
About how much of this energy would reach the tertiary consumers in the ecosystem?
100 kcal
1,000 kcal
70,000 kcal
73,000 kcal
Gabi is modeling a step in the carbon cycle.
Which of the following words belongs in the box?
fixation
photosynthesis
respiration
transpiration
In the carbon cycle, all animals must consume other organisms because
they can not absorb enough carbon from water.
they cannot absorb carbon directly from the air.
they are in competition with plants for available carbon.
they require carbon to perform photosynthesis.
The picture displays an ecosystem.
What is the most likely reason algae and seaweed are found in the top layer of the water?
The temperature is cooler for respiration.
There is more sediment for getting nutrients.
The chemical level is more balanced.
There is more light for photosynthesis.
The diagram shows a general representation of an energy pyramid for a living system.
As energy flows through the pyramid,
10% of available energy is passed to each increasing trophic level.
25% of energy is gained at each increasing trophic level.
energy remains the same at each trophic level.
energy increases at each trophic level.
The diagram represents an ecological process.
Which statement is most likely referring to the process shown in the diagram?
Ecosystems tend to change with time until a stable system is formed.
Succession involves changes in plant species only.
Humans have modified the environment with technology and pollution.
Insect communities do not grow in aquatic habitats.
What is the meaning of the word “pioneer” in the term “pioneer species?
A specie that has inhabited an area of land for a very long time and has flourished the area rapidly
The last specie to die out in an area of land that has gone under serious degradation
A specie that isn’t able take advantage of harsh physical conditions in environments where there is little competition
The specie that first colonized a disturbed area and alter the environment in ways that make it favorable to the colonization of other species
What would most likely occur over time if the burning and clearing of tropical rainforests stopped?
an increase in the amount of oxygen released into the atmosphere
a decrease in the biodiversity of species
an increase in the amount of atmospheric pollution produced
a decrease in the source of new medicines
