Science

What is the primary consumer in the oak tree food chain involving earthworms and hawks?

Earthworm (the secondary consumer is the vole and the hawk is the top carnivore).

What represents the flow of energy in a food chain?

The arrows in a food chain represent the flow of energy from one organism to another.

How many Siberian tigers are left in Siberia?

About 300 tigers.

Name two threats to the Siberian tiger population.

Illegal hunting for Chinese medicine and habitat development for commercial activities.

What is a producer in the Siberian ecosystem?

Fungus.

What happens to the population of carnivores if the number of herbivores decreases?

The population of carnivores will decrease.

Why are food chains considered overly simplistic?

They do not show the full scale of feeding relationships within ecosystems.

In the food web that includes a tawny owl, which organism eats three types of prey?

Tawny Owl.

What is an example of a food chain?

Grass -> Herbivore (e.g., locusts) -> Carnivore (e.g., snakes) -> Top Carnivore (e.g., eagles).

What is a habitat?

The natural home or environment of an organism.

Define 'endangered' in terms of species population status.

A species with a population decreasing and at risk of extinction.

Explain how conservation can be achieved for Siberian tigers.

By stopping poachers and establishing protected areas.

What are the trophic levels in a food chain?

Producer, Primary Consumer, Secondary Consumer, and Tertiary Consumer.

How does a viral disease affecting snakes impact the food chain involving grass, locusts, snakes, and eagles?

Grass population will increase, locusts will increase, and eagles will decrease.

What kind of organisms form the first trophic level in a food chain?

Producers, such as green plants.