Which statement best describes one way sea anemones depend on clownfish for an abiotic factor in an ecosystem?

HINT abiotic components are non-living factors that impact an ecosystem.

lants that live on the floors of densely populated forests must compete for sunlight.

Which type of leaves are most likely found on plants that best suited to living on the floor of a dense forest?

hree different species of plants that live in the desert are shown

Species Z can successfully share the same environment with the other plants shown because species Z absorbs water

Wild hogs introduced to Texas from Europe became feral after the hogs escaped from the ranches where they lived. Feral hogs are omnivores that feed on native plants, crops, and small animals. Feral hogs can damage an ecosystem by rooting through the soil to look for food and trampling small plants.

Which types of native organisms do feral hogs most likely compete with for food sources?

Four students were asked to create a graph representing a typical predator-prey relationship.

Which graph shows a situation in which the number of predators in a population depends on the number of prey?

Bank swallows are birds that make their nests on the edges of rivers but can’t swim or breathe underwater. They feed on flying insects and in the spring, they lay four or five eggs.

What change in these birds will likely be brought about by flooding in their habitat?

The types of small organisms that live on the bottom of streams can be good indicators of water pollution. The table to the right shows some organism by their tolerance of pollution.

A certain stream that was historically clear and clean has become increasingly polluted with fertilizer waste over the years. Which of these describes a likely result of this pollution?

Lakes that are cut off from regular sources of flowing water eventually become fields over long periods of time. What happens to the fish population that lived in the lake originally?

Before the Industrial Revolution, the peppered moth was commonly found on the trunks that had light-colored lichen on the bark. Most of the peppered moths were a light gray-brown color similar to that of the lichen. A few moths had a mutation that made them a dark gray-brown color

During the Industrial Revolution, coal-burning factories produced black soot that covered the trees and killed the lichen in the near cities. In these areas, the number of dark peppered moths increased while the number of light peppered moths decreased. What contributed to this change?

Robins migrate south during the winter months to avoid harsh conditions and then return north during the summer.

What environmental conditions are the robins most likely responding to in order to determine when the seasons are changing?

Humans depend upon food that comes from the ocean. Some human activities negatively impact these food supplies.

Which statement provides the best evidence that human activities contribute to this impact?

A coastal area that once supported a thriving fishing industry is overfished. The number of species found living in the marine ecosystem decreases.

Which of these activities is most likely to increase the natural biodiversity in the area?

Water lilies are green thin floating plants found mostly on the edges of ponds, lakes, and streams. They have pink, white or yellow flowers that bloom on top of the leaf. Water lilies have a very fast growth rate as their root system is extensive.

If annual rainfall increased and caused the pond in this habitat to become deeper over time, how, after many generations of new plants, might the traits of these water lilies change?

Which of the following correctly defines the term "ecology"?

All of the following are examples of living things interacting with each other EXCEPT ...

What might happen to an organism if they are unable to respond to a changing ecosystem?

Giraffes have long necks that help them reach leaves high up in trees. They get all the energy they need from plants such as this. What type of consumer are giraffes.

What do the arrows show in a food chain?

On the ecological pyramid, where would humans who eat cows fall on our consumer list?

The original source of energy for a food web is...

Which of the following would be the most likely effect, if there were a sudden increase in the cricket population?

Click on the image to make it larger-- Choose all that apply: The hawk gets energy from...

Click on the image to make it larger-- Choose the living things that are producers...

Mark all the organisms that are considered producers

Giraffes have long necks that help them reach leaves high up in trees. They get all the energy they need from plants such as this. What type of consumer are giraffes.

Mushrooms often grow around dead plants such as decomposing trees. They break down these dead organisms and put energy that stores in the plant back into the ground for other plants to use. What type of consumer are mushrooms?

How much energy gets moved to the next trophic level?

In the following food chain, how much energy would the snake get if the grass's trophic level started with 50,000 kcal?

Arrows represent ______________

What is the ultimate source of energy?

What percentage of energy is transferred from one trophic level to the next?

What is the primary consumer?

What is the producer?

What is the tertiary consumer?

What is the secondary consumer?

What is the 4th order consumer?

What is the decomposer?

Energy that is not passed from one trophic level to the next is usually lost as?

Which organism is NOT a producer?

Where does the rabbit get its energy from?

Which organism is a primary consumer in the above diagram?

Which organism is a secondary consumer in the above diagram?

Which organism gives its energy to 4 organisms?

Which organism gets its energy from 3 organisms?

Which organism is at the 3rd trophic level?

Which of the following statements is true of this Waterbird Food Web?

Which organism is a decomposer?

The skylark meadow pipit is a predator to how many organisms?