Ecology DCFA Review #1

Multiple Choice

Define abiotic

• Nonliving things

• Something big

• Something small

• Living things

Multiple Choice

For what are the wildcat and the fox competing?

• Goat

• rabbit

• owl

• hawk

Multiple Select

Choose all the organisms that rely on grains as a food source.

• Rabbits

• Mice

• grasshopper

• birds

• owls

Multiple Choice

Which color of grasshopper has a population that is decreasing?

• Green

• Brown

Multiple Choice

What does the Bacteria use as a food source?

• small mammals

• grasses, brush, cacti

• Dead plants, dead animals

• small frogs, worms, insects

Multiple Choice

Click on the map to help answer this question. What can we predict about the population of Feral Swine for the year 2016?

• There will be less feral swine in 2016 than there were in 1982.

• There will be more feral swine in 2016 than there were in 2010

• There were fewer feral swine in 2004 than 1982.

• There will be no change in feral swine population.

Multiple Choice

In an ecosystem, the more living requirements that two different species have in common, the more intense will be their

• ecological succession

• competition

• energy requirements

• evolution

Multiple Choice

What would most likely happen if the rabbit population was removed from the food chain grass —› rabbit —› fox?

• their would be more grass

• there would be less rabbits

• there would be more fox

Multiple Choice

What factor would cause animals of the same species to begin competing with one another?

• increase in precipitation         

• the presence of decomposers

• the introduction of a new food source

• limited supply of resources

Multiple Choice

Hawks and owls eat the same type of food and struggle with one another to get their food. What is this an example of?

• Competition

• Biotic factor

• Symbiosis

• Population

Multiple Choice

Which of the following is NOT a source of pollution in the ocean?

• Fertilizers used on land.

• Sand drifting along the bottom of the ocean floor.

• Oils found on city streets.

• Emissions from gas-burning vehicles.

Multiple Choice

What happens when a fertilizer runoff happens?

• Fish get bigger.

• Algae grow rapidly.

• The water becomes very clear.

Multiple Choice

What is one way humans are trying to positively impact the ocean?

• Fishing

• Drilling for oil and natural gas

• Creating artificial reefs

Multiple Choice

Which continent has 36% of the wild cats?

• Asia

• Africa

• North America

• South America

Multiple Choice

At what time is the rocket the highest according to the graph?

• 60 seconds

• 80 seconds

• 100 seconds

• 120 seconds

Multiple Choice

According to the graph, what is causing the deer population to decrease

• They got sick

• The wolf population is decreasing

• The wolf population increased

• They ran out of food