Practice EOC Spring 2025 SCIENCE

What process is occurring at letter "J" in the diagram of the rock cycle?

melting

A brown headed cowbird lays its eggs in a warbler bird's nest. The baby cowbird will push out the warbler eggs and babies out of the nest to be fed by the mother warbler. This is an example of

parasitism

A community in which barn owls and snakes consume only mice is being observed. If the number of snakes increases, what is most likely to happen first?

The mouse population will decrease

Look at the graph of a deer population over the years. What is the approximate carrying capacity of the ecosystem the deer live in?

80

A rock breaks off the side of a mountain and tumbles down into a river and ends up in the ocean. This is

erosion

Which organism is a producer from the following: Bear, Deer, Oak tree, or Mushroom

Oak tree

What process is occurring at letter "M" in the diagram of the rock cycle?

weathering

Explain the difference between a renewable and nonrenewable resource

Renewable resources can be replaced naturally over time (like solar, wind, and trees).
Nonrenewable resources cannot be replaced quickly (like coal, oil, and natural gas).

In San Diego, we live closest to a

transform boundary with frequent earthquakes

Which one is a secondary consumer?

rat

Which of these resources is NOT a fossil fuel? (Coal, Oil, Gasoline, Natural gas, Geothermal)

Geothermal

What is an abiotic factor?

a non-living part of the environment, like sunlight, water, air, or temperature.

As shown on the map below, what significant activity occurs at the “ring of fire”?

A large number of earthquakes and volcanoes erupt here.

Why did the reindeer population go extinct on St. Matthew island?

They surpassed their carrying capacity and depleted their food source.

Rocks formed from previously existing rocks that have been changed by extreme heat, pressure are called:

Metamorphic rocks

The maximum number of organisms of a population that an ecosystem can support without being harmed is known as:

Carrying capacity

Look at the food web below. What do the arrows show?

The direction of energy flow in the ecosystem

Which of these is a NON-renewable resource? (coal, hydroelectric, solar, wind)

coal

What kind of boundary is shown in the image below?

Divergent

If all of the producers in an ecosystem were removed, the first consequence would be:

Primary consumers would soon die

Wolves were considered a threat to humans and by 1930, the last gray wolf in Yellowstone was killed. What was the result of removing the wolves?

Elk populations increased

Which of these is NOT a reason biodiversity is important to humans?

1. Controls erosion

2. Creates convection currents in the mantle

3. Cleans the water and air

4. Natural beauty and recreation

5. Source of food and medicine

creates convection currents in the mantle

Which of the following explains why producers are always found at the beginning of a food chain?

Prouducers convert light energy into chemical energy (food).

Which of the following is a symbiotic relationship where one partner benefits and the other is unaffected.

commensalism

Examples of renewable resources (if managed appropriately) include:

freshwater, forests, and fish

Many natural resources should be renewable, but we are using them so fast they may run out. A good example is:

fish

A series of processes on Earth’s surface and interior that slowly changes rocks from one kind to another is called:

The rock cycle

This rock shows an example of the process of

weathering

Which of the following resources are most commonly used by this city?

Oil, coal, and natural gas resources

In what way does a transform boundary differ from the other boundary types?

one plate slides past the other

Erosion can occur because of: ice, water, wind, all of the above

all of the above

Which type of plate boundary led to the creation of the Himalayan Mountains, the highest in the world, near India?

Convergent

Two types of natural resources are:

Renewable and non-renewable

Which of the following statements best describes what this graph shows?

Fish will increase in population but there are limiting factors like disease and predators that will keep the population at carrying capacity.

When the availability of food decreases, the population of organisms decrease due to:

increased competition

Fossil fuels were formed from:

Once living organisms that have decomposed over time

Sometimes a renewable resource can be considered norenewble because it is used up faster than it can be replenished. Which description is an example of this?

Forests being cut down at a quicker rate than they can grow

Which of these is a man-made cause of the Dust Bowl of the 1930's?

Farmers removed all the native grasses whose long roots held the soil in place when winds blew

Which of the following is an example of parasitism?

1. Fleas feeding on a dog’s blood

2. Bees transporting pollen from flowers

3. Egret (birds) riding on backs of cattle.

4. Remora fish swimming below sharks

Fleas feeding on a dog’s blood.

A limiting factor is something that

restricts the number of organisms in a population

Which photo has greater biodiversity?

Botoom-because it has many diffrent types of plants

Invasive species are:

non-native and harmful to the enviroment

Which of these is the herbivore (or primary consumer)?

grasshopper

The energy in an ecosystem usually originates from:

Sunlight

You found a rock that is tan in color, made of small particles, and contains fossils. What type of rock did you find?

Sedimentary rock

Plate tectonics occurs because of convection currents below the crust. Convection currents are when

hotter magma rises and cooler magma sinks down

The sea anemone provide protection for the clown fish and the clown fish cleans the sea anemone. This is an example of

mutalism

Where is the densest part of the Earth?

inner core

Sediments are formed through the process of _______.

weathering

There is a drought which dries up the grass. How does that eventually affect the number of snakes?

number of snakes decrease