Ecosystems & Cycles

Ecosystems & Cycles

EOG Review

Multiple Choice

a leaf

• biotic

• abiotic

Multiple Choice

temperature

• biotic

• abiotic

Multiple Choice

a dead animal

• biotic
• abiotic

Multiple Choice

trees

• biotic

• abiotic

Multiple Choice

a rock

• biotic

• abiotic

Multiple Choice

air

• biotic
• abiotic

Multiple Choice

a fish

• bitoic

• abiotic

Multiple Choice

Ecosystems are made up of only the living things in a habitat.

• True

• False

Multiple Choice

The total sum of all the populations of living things within an area that interact with one another is called_________. Zebra, elephants, and giraffes would be an example

• Biosphere

• Population

• Community

• Organism

Multiple Choice

All the individuals of one species in a given area is called a ______________. A herd of zebras would be an example.

• Population

• Community

• Non-living

• Organism

Multiple Choice

An individual is a single _______________ of a particular species. One single zebra is an example.

• Population

• Organism

• Ecosystem

Multiple Choice

What would human alterations of the environment be considered? Ex. Cutting down the rain forests

• Density-independent

• Density-dependent

Multiple Choice

An extensive drought in the plains threatens wildebeest, giraffe, zebra, and springbok populations.

• Density-Dependent

• Density-Independent

Multiple Choice

Many fish die due to a drastic change in water temperature.

• Density-Dependent

• Density-Independent

Multiple Choice

Which of the following would INCREASE the carrying capacity of an ecosystem?

• increase in predators
• disease
• increase in available food
• drought

Multiple Choice

Something that regulates the size of a population is called...

• a limiting measure

• a limiting factor

• carrying capacity

• biodiversity

Multiple Choice

The largest number of individuals that an environment can support long term is...

• carrying capacity

• emigration

• immigration

• population density

Multiple Choice

This may cause a population to increase

• increase of food supply

• removal of predators

• removal of disease

• all of these

Multiple Choice

A connection of food chains with many food energy paths in an ecosystem is a ____________

• ecosystem
• food web
• environment

Multiple Choice

The direction of the flow of energy in a food web is represented by ___.

• Light bulbs
• Dotted Lines
• Arrows
• Bubbles

Multiple Choice

What is the role of decomposers in a food chain?

• Use sunlight to make food
• Eat other organisms to gain energy
• Make the food for the whole food chain
• Break down dead organisms and add nutrients to the soil

Multiple Choice

What's the role of consumers in a food chain?

• Use sunlight to make food 
• Eat other species and keep them from overpopulating
• Break down dead stuff
• Add nutrients to the soil

Multiple Choice

What is the role of a producer?

• Use sunlight to make food
• Gain energy from eating other organisms
• Keep other species from overpopulating
• Breaking down dead stuff 

Multiple Choice

What are the organisms that break down dead stuff?

• Producers
• Consumers
• Decomposers
• Organisms

Multiple Choice

Which organism recieves the least amount of energy from the producer?

• Owl
• Grasshopper
• Lilypad
• Mouse

Multiple Choice

The number of organisms _________ with each successive (higher) trophic level. 

• increases
• decreases

Multiple Choice

Hookworms enter the human body by burrowing into the skin of the feet. Once in the skin they enter the bloodstream and travel to the small intestine where they attach to the walls and begin to drink the person's blood and weaken the victim.

• parasitism

• mutualism

• commensalism

Multiple Choice

Honey guide birds alerts and directs badgers to bee hives. The badgers then expose the hives and feed on the honey first. Then the honey guide bird eats.

• mutualism

• commensalism

• parasitism

Multiple Choice

Wrasse fish feed on the parasites found on the black sea bass's body.

• commensalism

• parasitism

• mutualism

Multiple Choice

Oxpeckers feed on the ticks found on rhinoceros. Oxpeckers get food and the rhinoceros gets pest control.

• commensalism

• parasitism

• mutualism

Multiple Choice

Hermit crabs live in shells made and then abandoned by snails.

• commensalism

• parasitism

• mutualism

Multiple Choice

Mistletoe extracts water and nutrients from the spruce tree.

• commensalism

• parasitisim

• mutualism

Multiple Choice

Barnacles create home sites by attaching themselves to whales. This doesn't affect the whales.

• commensalism

• parasitism

• mutualism

Multiple Choice

An organism that is killed and eaten by another organism

• Predator
• Prey
• Competition
• Adaptation

Multiple Choice

When two or more individuals or populations attempt to obtain a single resource.

• Competitive interaction

• Mutually beneficial interaction

• Dependent interaction

• Predatory interaction

Multiple Choice

Snow, sleet, hail, and rain are all examples of ________________.

• evaporation

• condensation

• accumulation

• precipitation

Multiple Choice

Which best explains why runoff is important?

• It returns water to other locations on Earth
• It increases the chance of flooding
• It makes evaporation occur faster
• It increases condensation

Multiple Choice

When water is heated in the ocean by the sun and turns into water vapor

• condensation
• evaporation
• transpiration
• runoff

Multiple Choice

What converts nitrogen into a useable form for plants and animals?

• bacteria

• fungi

• rain

Multiple Choice

removing large numbers of trees result in _

• a decrease in oxygen production
• an increase in oxygen production
• oxygen and carbon 
• carbon and oxygen 

Multiple Choice

Define the process shown here:

• Carbon Cycle
• Respiration
• Photosynthesis
• Magic