Flow of Energy in Ecosystems

Organisms such as bacteria that break down dead plants and animals are called

• producers

• decomposers

• consumers

• herbivores

Organisms that eat other organisms for nutrients are called

• producers

• decomposers

• consumers

• rainbows

Organisms that make their own energy and food for nutrients are called

• producers

• decomposers

• consumers

• popular people

Overlapping food chains with many pathways for the flow of energy are called

• pizza parlors

• producers

• food webs

• biotic factors

An interaction that is helpful to BOTH organisms is called a

• predatory interaction

• competitive interaction

• neutral interaction

• mutually beneficial interaction

An interaction in which one animal eats another is called

• predatory

• competative

• mutually beneficial

• a sleepover

Nutrients and minerals are passed from the living parts of an ecosystem to the non-living part when which interaction takes place

• Gases like carbon dioxide go into plants

• Water enters the animals body when it drinks

• Dead plants are broken down and decompose into the soil

• Plants enter the animals body when it eats

The energy organisms need to live first enters the ecosystem when

• someone gets struck by lightning

• plants take in light from the sun

• secondary consumers eat primary consumers

• herbivores eat plants

Based on the food web, matter could follow which of the following paths

• lavender-->butterfly-->thrush

• flowering plant-->frog-->snake

• frog-->grasshopper-->corn

• mango-->fruit fly-->thrush

An example of a predator and prey for four different ecosystems is provided above. Which would be an example for changes of one of the populations to do a predator/prey interaction

• When the population of sharks decrease because of fishing, the population of small fish will decrease

• After a period of heavy rainfall and warmer temperatures, the population of mosquitoes will increase

• When more food allows the population of mice to increase, the population of snakes will decrease

• During hunting season when many deer are killed by hunters, the mountain lion population will decline