Interdependency
Food Webs
Environmental Changes
Carbon-Dioxide and Oxygen Cycle
Questions
100

All of the living and non-living things,and all of their interactions in an area

Ecosystem

100

A path of energy transfer from one organism to another

Food Chain

100

The space, conditions, and all the living and nonliving things around an organism

Environment

100

The continuous exchange of gasses between living organisms and the environment

Carbon Dioxide - Oxygen Cycle

100

Some beetles break down the remains of dead animals. Some mushrooms break down the remains of dead trees. How do these actions most benefit plants? 

A. By returning nutrients to the soil 

B. By releasing oxygen into the air 

C. By making space for new animals 

D. By decreasing the population of herbivores

A. By returning nutrients to the soil

200

Possessing the capacity for metabolism, growth, reproduction, and response to stimuli

Living

200

An interconnected set of food chains

Food Web

200

The action of one object having a lasting effect or influence on a situation, person, or environment

Impact

200

The waste product produced by plants during photosynthesis that animals use for respiration

Oxygen

200

In a food chain, energy does NOT flow directly from:

A. producer to decomposer 

B. producer to consumer 

C. consumer to decomposer 

D. consumer to producer

D. consumer to producer

300

Something that does not grow, reproduce, or use energy

Non Living

300

An organism that hunts and feeds on another organism.

Predator

300

Maximum population size that can be sustained by a given environment.

Carrying Capacity

300

A gas produced by cells during respiration; used in photosynthesis to produce sugars

Carbon Dioxide

300

Wild hogs eat many different kinds of foods, including plants, fungi, and insects. Besides being very destructive to the habitats of other animals, how do wild hogs most likely harm other animals. 

A. By competing with other animals for food 

B. By moving slower than most other animals 

C. By causing other animals to reproduce more 

D. By eating foods that no other animals eat

A. By competing with other animals for food

400

Any individual living thing that can function on its own

Organism

400

An animal that is hunted as food

Prey

400

All of the interacting members of the same species in an area.

Population

400

A process by which animals use oxygen and food to make energy and carbon dioxide

Respiration

400

Animals and plants use substances that cycle through the environment. Which substance is needed by plants to survive and is released into the environment by animals? 

A. Oxygen 

B. Sugar 

C. Salt 

D. Carbon Dioxide

D. Carbon Dioxide

500

The evolutionary process where a species becomes better suited to its environment

Adaptation

500

Organisms that break down dead material

Decomposers

500

The condition where the number of living entities (human, animal, or otherwise) exceeds the carrying capacity of their environment

Overpopulation

500

The process where plants use sunlight, water, and carbon dioxide to produce sugar and release oxygen

Photosynthesis

500

What would most likely happen to the carbon dioxide-oxygen cycle if Earth's large forests were all cut down? 

A. There would be more carbon dioxide in the atmosphere because fewer plants would be using it to produce their own food

B. The remaining plants would stop producing carbon dioxide, and animals would use less oxygen

C. The remaining plants would produce more oxygen, and animals would produce less carbon dioxide 

D. There would be more oxygen in the atmosphere because few plants would be using it to produce their own food

A. There would be more carbon dioxide in the atmosphere because fewer plants would be using it to produce their own food