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WorksheetsUnit 8: Intro to Ecology
Total questions: 22
Worksheet time: 23mins
What do the arrows in the food chain indicate about the flow of energy in an ecosystem?
Energy is continuously recycled by the organisms in an ecosystem.
Energy flows in one direction in an ecosystem, from producers to consumers.
More of the available energy in an ecosystem is given to large animals than to small animals.
Organisms at the end of the food chain receive more energy than those at the beginning.
The diagram provided shows a marine food chain. In this food chain, the zooplankton are
(a)
The diagram shows part of an aquatic food web for a stable lake ecosystem in Connecticut. What is the source of energy for the algae?
(a)
The picture provided shows an ocean bay food chain. Sea otters move into the ocean bay. They eat all of the sea urchins. This change will cause the
(a)
In an energy pyramid, energy (a) as you move up the pyramid.
In the energy pyramid here, how much of the energy in the producers gets passed to the herbivores?
90%
50%
10%
5%
There is 1000 Kcal available in the producers. What does the 2nd trophic level receive?
1000 Kcal
10 Kcal
100Kcal
1 Kcal
0.1 Kcal
Consists of all the biotic and abiotic factors of the environment...
(a)
A group of organisms of the same species in any given area...
population
community
biome
biosphere
Group of populations in an area.
(a)
All the ecosystems of earth that life exists in...
Population
Community
Biomes
Biosphere
Limiting factors that affect all populations in similar ways, regardless of population size are...
(a)
The maximum number of individual organisms that an ecosystem can comfortably support is...
(a)
J curve - as population gets larger, it also grows faster. This occurs because there are more individuals reproducing as the population grows and is known as...
(a)
Natural and man-made events that slow or stop population growth are...
(a)
s curve- The population reaches carrying capacity and levels out.
(a)
Limiting factor that depends on population size
Ex: competition, predation, parasitism and disease, stress from overcrowding
(a)
Complete the food web by drawing arrows to the correct locations
Name 1 of the 3 factors that affect population size?
(a)
What inorganic matter flows in and out of an ecosystem?
CHNOPS (Carbon, Hydrogen, Nitrogen, Oxygen, Phosphorus, and Sulfur)
NaCl (Salt)
Ne (Neon)
He (Helium)
How does inorganic matter flow in and out of an ecosystem?
Why are decomposers an important part of an ecosystem?
(a)
