Biology: Nutritional Relationships in Ecosystems

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What is the term for organisms that can synthesize their own food and store energy for other organisms?

Autotrophs (correct)

Decomposers

Chemosynthetic Organisms

Heterotrophs

What type of organism obtains energy and nutrients by eating other animals?

Omnivore

Herbivore

Scavenger

Carnivore (correct)

What is the term for the process by which decomposers break down organic matter?

Respiration

Photosynthesis

Chemosynthesis

Chemical Decomposition (correct)

What is the term for a series of steps in which organisms transfer energy by eating and being eaten?

Food Chain Signup and view all the answers

What type of organism consumes both plants and animals?

Omnivore Signup and view all the answers

What is the term for the network of feeding interactions between organisms?

Food Web Signup and view all the answers

What is the primary characteristic of producers in an ecosystem?

They are autotrophs and don't consume other animals Signup and view all the answers

What is the percentage of energy that gets passed from one trophic level to the next in a food chain?

10% Signup and view all the answers

What type of pyramid illustrates the relative amount of living organic matter at each trophic level in an ecosystem?

Pyramid of Biomass Signup and view all the answers

What is the process called when water is transferred from the surface of the earth to the atmosphere?

Evaporation Signup and view all the answers

What is the term for the process of matter cycling between ecosystems and elements passing from one organism to another and through different parts of the biosphere?

Biogeochemical recycling Signup and view all the answers

What is the process called when water transitions from a gas state to a liquid state?

Condensation Signup and view all the answers

What is a characteristic of freshwater ecosystems compared to marine ecosystems?

Only freshwater ecosystems have a top zone with enough light for photosynthesis Signup and view all the answers

What is the primary reason for the difference in temperature between the equator and deeper water?

Currents carry water of different temperatures around the globe Signup and view all the answers

What is the main consequence of human activities on the environment, according to the text?

The depletion of natural resources and negative environmental impacts Signup and view all the answers

What is an example of a renewable resource mentioned in the text?

Pine tree Signup and view all the answers

What is the estimated carrying capacity of the world, according to the text?

7 billion Signup and view all the answers

What is a positive consequence of agriculture, according to the text?

Dependable supply of food and growth of modern civilization Signup and view all the answers