Cuestionario sobre Ecosistemas

Over several years, a population of bats living in a cave decreases in size. Which of the following factors could cause this decrease in the size of the bat population? Choose all factors that apply.

Barnacles live in saltwater attached to sturdy objects like rocks. All rocky surfaces in a bay are already covered with barnacles. This lack of surfaces to attach to is an example of DEST_1 acting as a DEST_2 factor that could stop the growth of the barnacle population.

• abiotic

• limiting

• biotic

• climate

Banana slugs live on the ground in the moist forests of the Pacific Northwest. They consume and decompose a variety of materials, including small dead animals and decaying leaves. What term describes banana slugs?

• carnivores

• consumers

• decomposers

• producers

Which organism has access to the least amount of energy?

Cyanobacteria, also known as blue-green algae, are a type of bacteria found in many lakes. These organisms produce their own food through photosynthesis. Small animals, including mayfly larvae, eat cyanobacteria. Small fish, such as yellow perch, eat mayfly larvae. Small fish provide food for larger fish, such as pike. Choose the level of the food pyramid that represents the energy role of cyanobacteria in the lake ecosystem.

• level 1

• level 2

• level 3

• level 4

Juanita is planning a scientific experiment to observe and record the daily activities of her community that release carbon dioxide into the atmosphere. She will use the collected data to build a model. This will help make informed decisions on how to reduce emissions and protect the environment. Which of the following activities would increase the amount of carbon dioxide in the atmosphere? Choose 3 that apply.

What composes all types of matter in living and non-living things in an ecosystem?

Which of the following are characteristics of a turtle in a desert environment that distinguish the turtle as a living being? Choose the three that apply.

• Needs food.

• Reproduces.

• Uses energy.

• Occupies space.

• Is composed of atoms.

Two species of turtles in a pond use the same species of fish as their food. The struggle of the turtles to survive while using the same limited resource is called

In a garden ecosystem, a bee has a relationship with a flowering plant, and that relationship is an example of mutualism. What effect does this relationship have?