Ecosystems
Food webs
Biomes
100

what is a ecosystem

A community of interacting organisms and their environment. Living things interact with each other, and also with non-living things like soil, water and air.

100

what is a food web

A food web is a model made of intersecting food chains.

100

what are biomes defined as

the world's major communities, classified according to the predominant vegetation and characterized by adaptations of organisms to that particular environment

200

Why would the shrimp in the ecosphere die if there was no sunlight

The shrimp in the ecosphere depend on the algae for food. If there was no sunlight, the algae would die, which leaves no food for the shrimp.

200

What are producers and consumers and how do they get their names?

Plants are producers because they produce their own food through photosynthesis. Animals are consumers because they consume plants or other animals.

200

The four major North American deserts of this type are the

 Chihuahuan, Sonoran, Mojave and Great Basin.

300

Why are rainforest ecosystems important

Rainforests cover only about 6 percent of the planet but are responsible for producing about 40% of the oxygen we breathe!

300

What role in the food web does the eagle play

An eagle is an apex predator, meaning it is at the top of the food web. Nothing else will attack and eat an eagle. Eagles will eat things like birds, snakes, mice and other animals.

300

Freshwater is defined

as having a low salt concentration — usually less than 1%. Plants and animals in freshwater regions are adjusted to the low salt content and would not be able to survive in areas of high salt concentration There are different types of freshwater regions:


400

What are some parts of a freshwater ecosystem

There are many examples. Some of the examples in the video include fish, crabs, shrimp, turtles,algae, plants, dead wood and rocks. All these are part of a freshwater ecosystem.

400

What do zebras eat and what eats zebras?

Zebras eat grass and they are eaten by predators like hyenas and lions.

400

Marine regions cover about three-fourths of the Earth's surface and include

oceans, coral reefs, and estuaries

500

What are some of the components of a rainforest ecosystem and how do they interact?

Rainforest ecosystems contain lots of plants. Plants provide food and homes for animals like birds and butterflies. Birds build nests in plants. Bugs eat leaves of plants and birds drink nectar from flowers. Some plants also make fruit which animals eat.

500

What is an apex predator and why are they critical for the health of the ecosystem?

An apex predator is an animal that feeds on other animals but is at the top of the food web, meaning that it has no predators. Apex predators help control the balance of an ecosystem by keeping the populations of other animals in check.

500

Characteristics of tundra include (only pick one)

  1. Extremely cold climate
  2. Low biotic diversity
  3. Simple vegetation structure
  4. Limitation of drainage
  5. Short season of growth and reproduction
  6. Energy and nutrients in the form of dead organic material
  7. Large population oscillations