Natural Selection and Ecology

What is the role of fungi in food webs?

• scavenger
• bacteria
• producer
• decomposer

Nearly all energy that fuels life on Earth comes from

• water
• the soil
• the sun
• the air

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which of the following refers to all the organisms in a particular area?

• ecosystem
• community
• organelles
• population

How do producers get the nutrients they need to survive?

• They obtain energy from eating other organisms.
• The break down and use the nutrients in dead organisms.
• They absorb nutrients from the atmosphere. 
• They use energy from the sun to make food from water and carbon dioxide. 

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

A large increase in the number of birds in the food web would most likely result in

• a decrease in the number of grasshoppers.
• an increase in the number of grasshoppers. 
• an increase in the number of producers and grasshoppers. 
• a decrease in the number of producers. 

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Identify a consumer in this food web that eats producers.

• grass
• squirrel 
• vulture
• cougar

Tags

NGSS.MS-LS2-2

In any population there will be individuals with traits that give them an advantage over others in the population and are more likely to survive and reproduce. This is part of which principle?

• mutations
• natural selection
• genetic resistance
• translation

Tags

NGSS.MS-LS4-4

What are the traits that make an organism better to survive in its environment called?

• adaptations
• evolution
• niche
• population

Tags

NGSS.MS-LS4-4

What is the process that occurs when new land is formed and slowly changes into a densely wooded forest over the course of hundreds of years?

• primary ecological succession
• secondary ecological succession
• tertiary ecological succession
• globalization

Tags

NGSS.MS-LS2-4

In the diagram, the various shapes of the beaks show how the birds

• compete for the same food in their community.

• require different amounts of food for survival.

• store food for the winter months.

• are adapted to get food from different sources.

Tags

NGSS.MS-LS2-2

NGSS.MS-LS4-4