Effects of Changes in Biotic and Abiotic Factors

An _______________ is made up of the living and nonliving things in an environment that work together for a purpose.

• habitat

• biotic

• ecosystem

• economy

Tags

NGSS.MS-LS2-1

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A living or once-living organisms in an ecosystem is a

• population
• biotic factor
• abiotic factor
• community

Temperature, light, air, water, and soil are all  _____  parts of the environment

• alive
• biotic 
• abiotic
• living

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

"Bio" means _________.

• non-living
• not/without
• life
• dead

The prefix "a" means 

• life
• science
• not or without
• one

All the organisms of a particular type living in the same place at the same time is called a _______.  An example is a herd of deer.

• population
• community
• resource
• ecosystem

How does a decrease in an abiotic factor such as rain impact a population in an ecosystem?

• The population will likely increase.
• The population will not be affected.
• The population will likely decrease.
• The population will become a different biotic factor.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which of these is an example of two organisms competing for a biotic factor?

• Two different spiders compete for mosquitos.
• Two bats want to hibernate in the same crevice in a cave.
• Two rocks are in the same stream.
• Two deer need to use the same puddle for water.

Use the graph to answer the question. A hurricane occured at some point in this ecosystem. Which of the following choices is the most likely time that the hurricane occured?

• year 2

• year 5

• year 7

• year 12

Tags

NGSS.MS-ESS3-2

NGSS.MS-LS2-4

What would happen if the acorn production decreased dramatically?

• the squirrel population would increase

• the squirrel population would have to find a new place to live

• the squirrel population would not be affected

• the squirrel population would be extinct

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4