Ecosystem Relationships
Energy Flow
Food Webs
Disease Agents
Pandemics & Epidemics
100

This type of relationship benefits both organisms involved.

Mutualism

100

What is the primary source of energy for nearly all ecosystems on earth ?

The Sun

100

what organisms make their own food using sunlight

Producers

100

This infectious agent is the smallest microbe and can only multiply inside living cells.

Virus

100

Was COVID-19 a pandemic or epidemic ?

Pandemic

200

This organism benefits and the other organism is harmed.

Parasitism

200

What do the arrows represent in a food chain or food web diagram?

The direction of Energy Flow

200

Organisms that only eat plants are called this.

Herbivores

200

This agent can be classified by five different shapes, is single-celled, and can exist in pairs, chains, or clusters.

Bacteria

200

a global outbreak that affects a large number of people in different countries and continents.

Pandemic

300

This type of relationship benefits one organism while the other is unaffected.

Commensalism

300

How much energy is passed on to each trophic level

10%

300

An organism that breaks down dead and decaying material, recycling nutrients back into the ecosystem.

Decomposer

300

This type of infectious agent has three main classes, lives on or in a host, and steals nutrients.

Parasite

300

an outbreak that only affects a small amount of people in a specific region or community.

Epidemic

400

The organism that a parasite lives in or on is known as this.

 Host

400

What happens to the amount of energy as it goes up the pyramid.

Decreases

400
An organism that eats both plants and animals are called what ?

Omnivores

400

Do antibiotics heal bacteria or viruses.

Bacteria

400

Between 1346 and 1353, this bacterium caused a plague that killed over 25 million people in Europe.

The Black Death (Bubonic Plauge)

500

A tapeworm living in a human intestine is an example of this type of relationship.

Parasitism

500

True or False About 90% of energy is lost as heat at each trophic level

True

500

 A food web includes grass, gazelles, lions, and hyenas. Both lions and hyenas hunt gazelles.

If a fire destroys a large portion of the grass, which animal will be affected first?

Gazelles

500

These organisms, often found in any habitat, can be single or multi-celled and rarely cause illness in animals.

Fungi

500

This teaches the immune system to recognize and fight the real pathogen without causing the disease.

Vaccine