Trophic Levels
Food Webs
Energy Flow
Biotic/Abiotic
Biome Relationships
100
How do producers get energy?
What is the sun? Producers get energy by transferring solar energy into chemical energy via a process known as photosynthesis.
100
If a grasshopper is a herbivore on an energy pyramid, what would a hawk be?
What is a carnivore?
100
What is the initial energy source for most life on earth?
What is sunlight?
100
The average yearly rainfall in the ecosystem is a(n) ________________ factor.
What is abiotic? Abiotic factors are non-living elements in an ecosystem.
100
In a coniferous forest a mistletoe extracts water and nutrients from a spruce tree. What is the symbiotic relationship between the mistletoe and the tree shown in the picture?
What is parasitism?
200
Animals that eat only plants are
What is herbivores? Herbivores only eat plants, while omnivores eat plants and meat and carnivores only eat meat.
200
Herbivores, carnivores, and scavengers are all examples of
What is consumers?
200
A food web is shown. What is the source of energy for the shrew?
What is the cricket?
200
Based on this list: water, clouds, fern, and the sun. Which is a biotic factor?
What is fern? Biotic factors are living elements in an ecosystem.
200
In the African Savannah ostriches and gazelles feed next to each other. They both watch for predators and alert each other to danger. Because the visual abilities of the two species are different, they can identify threats the other animal would not see as readily. This is an example of _____________.
What is mutualism?
300
Red algae are organisms that convert sunlight into food through photosynthesis. What is the role of red algae in a food chain?
What is producers?
300
A food web is shown. Which population would MOST likely decrease first if the number of mice decreases?
What is the hawk? The hawk gets energy from the mouse, if there are no mice, the hawk population will decrease.
300
A food chain is a model that shows how energy moves through an ecosystem. This is a food chain for a marine ecosystem:
Sun ---> phytoplankton ---> zooplankton ---> fish
Draw a possible food chain for a freshwater pond ecosystem that includes the following:
1. an energy source
2. a plant
3. an animal that eats a plant
4. an animal that eats the animal that eats the plant
Sun ---> phytoplankton ---> zooplankton ---> fish
Draw a possible food chain for a freshwater pond ecosystem that includes the following:
1. an energy source
2. a plant
3. an animal that eats a plant
4. an animal that eats the animal that eats the plant
What is Sun ---> producer ---> herbivore---> omnivore?
300
An ecosystem is described below.
Which rows contain biotic factors?
Which rows contain biotic factors?
What is 1, 2, and 3?
300
The picture below shows an orchid.
Why would an orchid NOT survive well in a desert?
Why would an orchid NOT survive well in a desert?
What is too dry and too much sunlight? Orchids are plants found in the Tropical Rainforest, they are used to hot temperatures, however, they need moisture (water) provided by the rain and little amounts of sunlight in order to survive.
400
The cycling of nutrients such as carbon, water, and nitrogen are mainly dependent upon-soil dwelling organisms. Which pair of organisms shown are NOT decomposers?
What is grass and mice?
400
A food web is shown below. Which organisms will MOST likely be affected first after a deforestation event?
What is squirrels and mice?
400
The plants in each square meter of an ecosystem obtained 20,810 calories of energy from sunlight per year. The herbivores in that ecosystem ate all the plants but obtained only 3,370 calories of energy. How much energy did the plants use?
What is 17,440 calories (20,810-3,370)?
400
What abiotic factor would must likely signal a population of birds that it is time to migrate from north (cold) to south (hot)?
a. change in wind direction
b. increase in food source
c. change in precipitation
d. decrease in sunlight
a. change in wind direction
b. increase in food source
c. change in precipitation
d. decrease in sunlight
What is d. decrease in sunlight?
400
Which if the following is NOT a prey adaptation?
camouflage
chemical defenses
warning coloration
parasitism
camouflage
chemical defenses
warning coloration
parasitism
What is parasitism?
500
A simple food web is shown below. Which two organisms (1, 2 , 3 or 4) are classified as primary consumers?
What is organisms 2 and 3.
500
A food web is a model that shows how matter moves among plants and animals in an ecosystem. Here is an example of a food web with some pieces missing:
Complete the model by properly matching the letters A, B, and C with:
cougar
squirrel
red fox
Complete the model by properly matching the letters A, B, and C with:
cougar
squirrel
red fox
What is A is cougar, B is a red fox, and C is a squirrel?
500
The boxes in the diagrams below represent the different levels in an ecosystem. The size of each box represents the relative number of organisms at each level. Which diagrams DO NOT best show the flow of energy in an ecosystem?
What are letters A,C, and D?
500
The chart below shows the rainfall averages for four different locations.
Which location clearly has the minimum amount of precipitation all year long?
Which location clearly has the minimum amount of precipitation all year long?
What is Alice Springs, Australia?
500
The population graph below shows the growth of a species of Paremaceium (single-celled microorganism) over 18 days. Food was added to the test tube occasionally. Use this graph to answer the question that follow.
What is the carrying capacity of the test tube as long as food is added?
What is the carrying capacity of the test tube as long as food is added?
What is about 65 paramecia per mL?