Ecosystem

Temperature, light, air, water, soil, and climate are all __________ parts of the environment.

• Biotic

• Abiotic

• Herbivore

• Both biotic and abiotic

Tags

NGSS.MS-LS2-3

Choose the phrase that correctly finishes this statement: "A species is..."

• A specific part of the abiotic environment.

• 
  A way of describing all the living parts of an ecosystem.

• A group of organisms that can successfully mate with each other and reproduce.

• Part of the natural decomposing materials in soil.

Ecology is the study of the _________.

• Abiotic parts of the environment, such as climate, air, and soil.

• Biotic parts of the environment, such as animals and plants.

• Interactions between organisms.

• 
  Interactions between organisms as well as the interactions between organisms and their environment.

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

What is an ecosystem?

• All the interacting organisms that live in an environment and the abiotic parts of the environment that affect the organisms.

• A person who observes and studies the interactions between the biotic and abiotic parts of the environment.

• The relationship among the biotic parts of the environment.

• The relationship between all the abiotic elements of a pond.

Tags

NGSS.MS-LS2-3

When populations share their environment and interact with populations of other species, it is called a:

• population

• community

• ecosystem

• biotic

Tags

NGSS.MS-LS2-2

Space where an organism lives and the role an organism plays within its ecosystem is referred to as a:

• population

• community

• niche

• biosphere

An organism that creates its own food is called_________.

• consumer

• decomposer

• scavenger

• producer

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

A consumer is ________.

• An organism that produces its own food.

• An organism that does not need food to survive.

• An abiotic organism.

• 
  An organism that cannot produce its own food.

Which of the following organisms are examples of producers?

• Plants and phytoplankton.

• Plants and consumers.

• Consumers and phytoplankton.

• Phytoplankton and chlorophyll.

Tags

NGSS.MS-LS2-3

A food web is more realistic than a food chain for showing the feeding relationships in ecosystems because __________.

• 
  It compares the number of consumers to the number of micro-organisms in an ecosystem.

• Food chains use only a small sampling of organisms.

• A food web explains why there are more producers than consumers.

• Producers are usually eaten by many different consumers and most consumers are eaten by more than one predator.

Tags

NGSS.MS-LS2-3