7.5 Ecosystem Dynamics Midpoint

Of the following statements, which is the BEST definition of "population"?

• The total number of organisms in an area

• The number of the same type of organism in an area

• An individual organism

• All of the animals in an area

Which of the following statements is the BEST definition of "abiotic factors"?

• Parts of the environment that used to be alive but have died

• Non-living parts of the environment that affect what can live there

• How much food is available in the environment

• Plants and animals

Tags

NGSS.MS-LS2-3

Examine the food web to the right. Which species would be most impacted by a drop in the rabbit population?

• Mice

• Snakes

• Grasses

• Fox

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

NGSS.MS-LS2-2

Examine the food web to the right. Which of the following species would be considered a secondary consumer?

• Mouse

• Grasshopper

• Grasses

• Frog

Tags

NGSS.MS-LS2-3

Which of the following statements is a CORRECT interpretation of this pie chart?

• 34% of people in the world use palm oil

• Soybean is the most used vegetable oil in the world

• Of all vegetable oils used in the world, palm oil is used the most

• Canola oil is the second most used oil in the world

Oil palm trees depend on which environmental conditions (abiotic factors) to grow? Select all that apply. Hint: More than one

• Temperature

• Rainfall

• Sunlight

• Insects

• Grasses

Tags

NGSS.MS-LS1-5

According to the graphs below when oil palm farms are created, how are orangutan populations impacted?

• Orangutan populations increase

• Orangutan populations stay the same

• Orangutan populations decrease

• It's impossible to tell from the graphs

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

What happens when a population's resources are limited?

• Decomposition

• Competition

• Increased birth rates

• Deforestation

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which of the following scenarios is an example of competition?

• When two animals reproduce with each other

• When two plants are trying to grow in the same spot

• When a deer is eating some grass

• When a plant is soaking up some rainwater through the roots

Tags

NGSS.MS-LS2-2

Examine the data from the orangutan population simulator. Why does Rose end with less energy than Sam?

• Sam was better at competing for food

• Rose preferred to eat termites instead of fruits

• Rose was the bigger orangutan

• Sam could move faster through the trees

Tags

NGSS.MS-LS2-1

NGSS.MS-LS1-5