Ecological Niche and Food Chains Quiz

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Questions and Answers

What does the ecological niche of a species include?

What it eats and what eats it (correct)

Only what it eats

Its habitat type

Only its predators

In a food chain, what is the role of producers?

They consume both plants and animals.

They are the main consumers in the ecosystem.

They provide energy for lower trophic levels. (correct)

They are the final consumers in the food chain.

What do ecological pyramids illustrate?

The amount of rainfall in different regions

The relationships between different trophic levels (correct)

The physical sizes of organisms in an ecosystem

The distribution of species across biomes

Which of the following correctly identifies a secondary consumer?

Weasel Signup and view all the answers

Which levels of the food chain are primarily composed of herbivores?

Second trophic level Signup and view all the answers

Which statement best describes the Gaia hypothesis?

It suggests that Earth functions as a self-regulating system. Signup and view all the answers

What elements constitute the biosphere?

Air, water, land, and living things Signup and view all the answers

Which of the following best describes the lithosphere?

The rocky outer shell of the Earth Signup and view all the answers

What distinguishes the base of a biomass pyramid from its top levels?

The base has more energy stored. Signup and view all the answers

What is a characteristic of agroecosystems compared to natural ecosystems?

They have uniform abiotic features. Signup and view all the answers

Acid precipitation can lead to which of the following soil issues?

Dissolution of metals beneficial for plant growth. Signup and view all the answers

What impact does acid precipitation have on forests?

Weakens trees making them vulnerable to diseases. Signup and view all the answers

What is a major consequence of acid precipitation for aquatic ecosystems?

It decreases the pH, harming fragile organisms first. Signup and view all the answers

Which statement is true regarding modern agricultural ingredients in Canada?

Many are imported from distant countries. Signup and view all the answers

How does acid precipitation affect the economy in Canada?

It damages steel and limestone structures. Signup and view all the answers

What is a consequence of monoculture in agroecosystems?

Consumers considered pests are attracted. Signup and view all the answers

Study Notes

Ecological Niche

A species' role in its ecosystem, including what it eats, what eats it, and how it behaves.
No two species occupy the same niche.
Producers and consumers obtain energy from different sources.
Consumers are categorized by what they eat (herbivores, carnivores, omnivores, scavengers).

Food Chains

Show the feeding relationships among organisms.
Example: Squirrel eats seeds, weasel eats squirrel, goshawk eats weasel.
Energy flows through the chain.
Energy is lost at each level.

Trophic Levels

Producers (1st level) are photosynthetic organisms.
Primary consumers (2nd level) eat producers
Secondary consumers (3rd level and up) eat primary consumers.
Energy pyramids show how energy decreases at higher trophic levels.

Terrestrial Biomes

Terrestrial ecosystems are mainly based on the climate.
Multiple types of biomes exist on Earth.

Modern Agriculture

Many foods consumed are not native to Canada.
Agroecosystems differ from natural ecosystems.
Agroecosystems have uniform abiotic features (less biodiversity) and are more intensely used by humans.
Require human maintenance.
Monocultures decrease biodiversity.
Pests are consumers of crops in agricultural environments.

Acid Precipitation

Impacts aquatic ecosystems by decreasing pH values.
Impacts soil by dissolving metals necessary for plant growth.
Impacts forests by weakening trees, making them more vulnerable.
Impacts the Canadian economy.

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Description

Test your knowledge on ecological niches, food chains, and trophic levels with this quiz. Explore how energy flows through ecosystems and understand the role of different organisms in terrestrial biomes. Challenge yourself to identify key concepts in modern agriculture as well.