Chapter 2: Ecosystems and Biomes

If a kestrel eats a mouse that eats grass, the kestrel is a

• producer

• first-level consumer

• second-level consumer

• decomposer

An organism that can make its own food is called a

• consumer

• producer

• decomposer

• scavenger

In which process do producers use carbon from carbon dioxide to produce other carbon-containing molecules?

• nitrogen cycle

• precipitation

• water cycle

• photosynthesis

If you were to make a physical model of the carbon cycle, what shape would the model take on?

• linear

• triangular

• circular

• linear with starts and stops

A group of land ecosystems with similar climates and organisms is called a(n)

• energy pyramid

• climate

• biome

• food web

Ponds and rivers are two types of

• marine ecosystems

• freshwater ecosystems

• rainforest biomes

• estuary ecosystems

Dandelions, horses, and other organisms that were brought by humans from one part of the world to another are examples of

• native species

• exotic species

• parasites

• endangered species

The many overlapping food chains in an ecosystem make up a(n)

• food web

• niche

• energy pyramid

• feeding level

Tags

NGSS.MS-LS2-3

Which biome is extremely cold and dry?

• desert

• tundra

• grasslands

• mountains

Bacteria and fungi are known as ____________________ because they break down the remains of organisms.

• producers

• first-level consumers

• second-level consumers

• decomposers

Tags

NGSS.MS-LS2-3