Energy Transfer
Hairy Vocabulary
Relationships
Ecosystems
Retched
100
True or false; Consumers are organisms that cannot make their own energy-rich molecules
true
100
True or false, Worms are herbivores, the eat animals that consume dead organisms. _______________
false, decomposer
100
True or false; a symbiotic relationship that benefits both species is referred to as commensalism. _______________
false, mutualism
100
True or false, A habitat refers to all the populations in an ecosystem. _______________
False
100
True or false, Niche is the term used to describe the way an organism survives, including its habitat, how it obtains food and shelter, and how it avoids danger. _______________
true
200
A certain animal likes to eat goats and sheep. How would this animal be classified? a. herbivore b. omnivore c. carnivore d. decomposer
c.) carnivore
200
Which of the following choices is an abiotic factor? a. bacteria c. ant b. sponge d. sunlight
d.) sunlight
200
Which of the following is an example of predation? a. A bear wades into the water, catches a fish and eats it. b. A deer grazes on the soybeans growing in a farmer’s field. c. A buzzard finds a dead raccoon on the side of the road and eats it. d. A cleaner shrimp eats the tiny organisms on a fish.
A.) A predator is an organism that hunts and kills other organisms for food. Prey are the organisms hunted or eaten by a predator. Predation is the act of one organism, a predator, feeding on another organism, its prey.
200
Which of these is part of an ecosystem? a. animals c. climate b. plants d. all of the above
d.) all of the above (abiotic and biotic)
200
The organisms of one species living together in the same place at the same time are a ____. a. community b. niche c. population d. all of the above
c. population
300
A certain animal likes to eat plants and fish. How would this animal be classified? a. herbivore c. omnivore b. carnivore d. decomposer
c.) omnivore Herbivores eat plants and other producers. Carnivores eat herbivores and other consumers. Omnivores eat producers and consumers. Decomposers break down the bodies of dead organisms into compounds that can be used by living organisms.
300
Herbivores are also all considered.... a.) producers b.) secondary consumers c.) primary consumers d.) decomposers
c.) primary consumer
300
Nemo, the clown fish lives among the stinging tentacles of the sea anemone but never gets stung. The sea anemone protects Nemo from predators, and Nemo helps bring food to the carnivorous sea anemone. What kind of relationship is this?
mutualism
300
There are 10 rabbits living in an area that was 200 square yards. What is the population density? a. 2,000 rabbits per square yard c. 0.05 rabbits per square yard b. 190 rabbits per square yard d. 50 rabbits per square yard
Population density is the size of a population compared to the amount of space available. It can be calculated using the following formula: Population density = (number of individuals) / (unit area or volume of space) = 10 rabbits/200 square yards = 0.05 rabbits per square yard
300
If there were a lot of offspring born in an area, but very few deaths, what would happen to the population? a. increase c. no change b. decrease d. It cannot be determined.
a.)Most populations change over time. Production of offspring increases the size of a population. The death of individuals reduces population size. If births outnumber deaths, the population grows.
400
Sierra decides to write down everything she likes to eat. Then, she draws branches under each animal on the list and writes everything they like to eat, and so on until she is down to all plants at the bottom of the page. What did Sierra make a diagram of? a. a food chain c. a carnivore-producer chart b. a food web d. none of the above
b.) Most ecosystems contain many food chains. A food web is a more complex model of energy transfer that can show how the food chains in a community are interconnected.
400
What is another name for a top predator in a energy pyramid that is four levels?
tertiary consumer
400
How does energy get transferred from the Sun to a cow?
A producer, such as grass, converts energy from the Sun to produce food molecules. The cow eats the grass and gains the energy.
400
Compare and contrast a population and a community.
A community consists of all the populations in an ecosystem and therefore has many different species in it. A population consists of all the members of one—and only one—species that live in an ecosystem.
400
Give an example of a decomposer, and explain what they do
Decomposers break down the bodies of dead organisms so that living organisms can use the compounds. Sample answer should be one of: fungi, bacteria, wood lice, termite, earthworm.
500
Why must a producer be at the base of every energy pyramid?
Producers are the only organisms that can make the energy-rich substances that are used for food. The second step in a food chain must be a consumer that eats the producer. Consumer eat producers or other consumers that have eaten producers.
500
What is defined as, All living organisms and nonliving factors interacting in an environment?
ecosystem!
500
Explain all three symbiotic relationships and give examples of each relationship
Mutualism is when both species benefit in the relationship (Oxpecker=>Rhino) Commensalism is when one species benefits and the other is neither harm nor effect) Remora=>Shark Parasitism is when one species benefits and the other is harmed (botfly=> human (hurt)
500
Using deer as the example population represented, explain the graph. Use vocabulary like population and limiting factor (graph on smartboard)
With plenty of resources and very few predators, the deer population increases over time, until finally there are too many deer in the area for the environment to support them. This occurs where the curved line representing the deer population crosses the horizontal line representing the carrying capacity. This is called overpopulation. The deer eat the plants too quickly for them to grow back. With less resources, some animals will move elsewhere, starve, or die from disease. Then the population quickly shrinks. This allows the resources in the environment to slowly return to normal.
500
Which of the following statements is true? a. Matter is continually being created. b. Matter is often destroyed. c. Some matter is lost when evaporation occurs. d. Matter can change form but cannot be created or destroyed.
d.) Almost all of the matter on Earth today has been here since it formed. Matter can change form, but it cannot be created or destroyed.
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