Level-Up Week 7- Biodiversity/Ecology

Categorize

Options (11)

Rocks

Air

Water

Light

Soil

Frog

Fish

Tree

Dragonfly

Lilypad

Cattail

Organize these options into the right categories

Abiotic Factors

Biotic Factors

Multiple Choice

Which of the following lists only biotic components of this savanna ecosystem?

• elephant, bird, grass

• bird, dirt, grass

• elephant, bird, water

• water, dirt, air

Multiple Choice

Choose the abiotic factors that characterize the tundra biome.

• very little rainfall, high temperatures

• very low temperatures, very little precipitation

• warm, wet forests

• arctic foxes, wolves, snowy owls

Multiple Choice

The _______ biome is the largest on Earth.

• marine

• polar

• freshwater

• terrestrial

Multiple Choice

Many bird species in Pennsylvania, such as the bluebird and golden-winged warbler, thrive in younger forests and open spaces. How would timber harvesting most likely affect the

sustainability of these bird species?

• It would increase the number of favorable habitats.

• It would reduce the number of edible insect species.

• It would produce forests that contain mostly mature trees.

• It would remove debris that provides protection from predators.

Labelling

Label each organism with the category that best fits.

Drag labels to their correct position on the image

Decomposer

Carnivore

Omnivore

Producer

Herbivore

Multiple Choice

How can an increase in the diversity of producer and decomposer populations most likely affect the stability of an ecosystem?

• Stability would increase because more light energy would be available.

• Stability would increase because more populations would be supported.

• Stability would decrease because fewer nutrients would be returned to the soil.

• Stability would decrease because less energy would be available to consumers.

Multiple Choice

Which statement explains why populations in upper trophic levels shown in the diagram tend to have less total mass than populations in lower trophic levels?

• Populations in upper trophic levels are more complex than populations in lower trophic levels.

• Populations in upper trophic levels have less available habitat than populations in lower trophic levels.

• Populations in upper trophic levels have less available energy than populations in lower trophic levels.

• Populations in upper trophic levels have more nutrient requirements than populations in lower trophic levels.

Multiple Choice

Which statement best explains why a food web more completely represents the flow of energy through an ecosystem than a food chain does?

• Most ecosystems have too many organisms to fit into a food chain.

• More energy flows through most ecosystems than a single food chain can show.

• Relationships between organisms usually change quickly enough to make food chains

  inaccurate.

• There are more relationships between organisms than can be shown in a single food chain.

Multiple Choice

Identify the producer in this food web.

• Grass

• Cricket

• Snake

• Hawk

Multiple Choice

Which of the following is a primary consumer?

• hawk

• deer

• human

• grass

Multiple Choice

Which word best describes the organism’s role in its ecosystem?

• mutualist

• parasite

• predator

• producer