Energy Flow
Describe the types of energy flow from the sun to a producer to a consumer.
Top-level predators such as alligators and panthers are categorized in the highest trophic levels in their food webs. Where does the energy they consume originate?
Ⓐ the Sun
Ⓑ producers
Ⓒ their prey
Ⓓ primary consumers
Ⓐ the Sun
What does symbiosis mean?
Living together
Give the definition of Limiting Factors.
Components in the ecosystem that control the amount of organisms that a ecosystem can hold. Acts as a form of checks and balances for the ecosystem. They are only available in a specific amount or control the growth of a population.
Define native species.
Organisms that were born and grew up in that specific ecosystem
Food chains from four different habitats are shown below.
Ocean: seaweed → sea urchin → squid → shark
Wetland: mosquito → fish → turtle → bacteria
Rainforest: peacock flower → monkey → jaguar → mushroom
Grassland: grass → mouse → hawk → vulture
Which food chain correctly represents a pattern of energy transfer from producer to consumers to decomposer?
Ⓐ ocean food chain
Ⓑ wetland food chain
Ⓒ rainforest food chain
Ⓓ grassland food chain
Ⓒ rainforest food chain
1. An organism that uses sunlight to generate its own food.
2. An organism that mostly eats producers in order to gain energy.
1. Producer
2. Primary consumer
Give the definition and one example of mutualism.
mutualism - when both organisms gain/ benefit from the relationship.
Examples may vary....Ms. Ramdin will determine if the answer is correct.
Which of the following is not considered a limiting factor?
A. water
B. shelter
C. oxygen
D. predators
C. oxygen
Define invasive species.
Organisms from another ecosystem that were accidentally or purposefully released and can potentially throw the balance off or ruin the new ecosystem.
How much energy is passed on from the food source to the organism consuming it?
A. 10%
B. 20%
C. 90%
D. 75%
A. 10%
Rabbits are a primary consumer because they mainly consume plants. Wolves hunt and kill rabbits so that they can consume them for energy. What type of consumer is the wolf?
Secondary consumer
Give the definition and one example of parasitism.
Parasitism - when one organism harms another for its own benefit
Examples may vary....Ms. Ramdin will determine if the answer is correct.
What is carrying capacity?
The maximum amount of organisms in a population that the ecosystem can hold
Manatees are endangered marine mammals native to Florida. They eat seagrass that grows in the water, migrate from summer habitats to winter habitats, and look for safe areas to feed and raise their young. People in boats need to give space to manatees to protect them from harm. What might conservationists do to protect manatee populations?
Ⓐ increase the number of boats
Ⓑ increase the local fish population
Ⓒ increase the oxygen available in the water
Ⓓ increase the amount of protected habitat available
Ⓓ increase the amount of protected habitat available
What might a food web model help scientists to understand?
Ⓐ the process of energy transfer in a food web
Ⓑ the relationships of producers in an ecosystem
Ⓒ how the populations change within an ecosystem
Ⓓ how the introduction of a new species changes the food web
Ⓐ the process of energy transfer in a food web
The food web shown is missing a specific type of organisms. What group of organisms is that?
Decomposers
Give the definition and one example of commensalism.
Commensalism - when one organism gains/benefits from the relationship and the other is not affected in any way.
Examples may vary....Ms. Ramdin will determine if the answer is correct.
List 3 examples of limiting factors and the importance of each.
* Shelter
* Food source
* Predators
* Water
* Competition
Which of the following does not contribute to the relaease of non-native species in an ecosystem?
A. Pet Trade
B. Food/Livestock Trade
C. Conservation Activity
D. Research Facilities
C. Conservation Activity
Which type of organism would have the most efficient of energy consumption in the ecosystem?
A. algae
B. alligator
C. grasshopper
D. bacteria
C. grasshopper
What would happen if there were no decomposers in the ecosystem?
Ⓐ The populations of prey will increase.
Ⓑ Consumers will have to expand their feeding relationships.
Ⓒ The organisms will eventually die out because matter will not be recycled.
Ⓓ There will be an increase in mutualistic relationships among the organisms.
Ⓒ The organisms will eventually die out because matter will not be recycled.
Snakes are reptiles that sometimes warm themselves by laying on rocks in the sunshine. Many small rodents live among the cracks in these rocks and use the tiny spaces to hide. The snakes capture and eat the rodents. Which of the following relationships is the least similar to the relationship between the snake and the rodent?
Ⓐ a bird eating a worm
Ⓑ a fox hunting a rabbit
Ⓒ a frog swallowing a flying insect
Ⓓ a tick feeding on blood from a deer
Ⓓ a tick feeding on blood from a deer
In 1906, there was a small population of deer on the Kaibab Plateau. Because cows had overgrazed the food on the Kaibab Plateau, the Forest Service decided to create a preserve on the Kaibab Plateau for the deer. In the preserve, the cows and the natural predators of the deer were removed. In 1920, the Forest Service discovered that the number of deer in the preserve was very large. By 1923, most of the deer were starving from a lack of food. Which statement best describes what happened on the Kaibab Plateau between 1906 and 1923?
Ⓐ Overgrazing by cows caused the deer on the Kaibab Plateau to starve.
Ⓑ The large growth and starvation of the deer population was an event of natural selection.
Ⓒ With no natural predators to regulate the population, the deer population continued to grow.
Ⓓ The growth of the deer population was slower than the growth of the food supply on the Plateau, causing starvation.
Ⓒ With no natural predators to regulate the population, the deer population continued to grow.
Name 3 examples of invasive species in Florida.
~ Armored catfish
~ Burmese Python
~ Iguanas
~ Monkeys
~ Red Lionfish
~ Brazilian Pepper Tree
~ Cane Toad
~ Japanese Climbing Fern