Unit 6 Review

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Unit 6 Test Tomorrow

Binder Check Due- Make sure you have your vocab is complete!

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​Renewable Resources vs Nonrenewable Resources

​• Higher upfront costs
• Environmentally friendly
Releases less CO2 • Replenishable

​• Cheaper for the consumer
• Easy to transport
• Limited Quantity
• Releases Greenhouse Gases

Multiple Choice

Which of the following are greenhouse gases?

• Carbon dioxide

• Methane

• Nitrogen Oxide

• All answers are correct

Multiple Choice

The main human activity that releases greenhouse gases is

• using bottled water
• burning fossil fuels
• texting on cellphones
• eating meat

Multiple Choice

__________ is an energy resource that WILL NOT run out in the next several hundred years.

• Renewable Energy Resource
• Nonrenewable Energy Resource

Multiple Choice

Emigration is

• the movement out of an area

• the movement into an area

• movement in and out of an area

• migration

Multiple Choice

Why don't populations grow indefinitely?

• limiting factors

• only biotic factors

• only abiotic factors

• none of the above

Multiple Choice

What is the arrow pointing at?

• carrying capacity

• biotic potential

• density-independent

• density dependent

Multiple Choice

What is the carrying capacity mean?

• The number of individuals an area can carry

• the number of births

• The number of deaths an area has

• not sure

Multiple Choice

When a specific population grows past the ecosystem's carrying capacity, what happens to the population?

• Density Independent limiting factors start to occur resulting in the population going farther above carrying capacity.
• Density Dependent limiting factors start to occur resulting in the population going back below carrying capacity.
• The population will go extinct due to lack of resources
• The population grows then finds a new carrying capacity

Multiple Choice

What is the carrying capacity of the following graph?

• 1000
• 8000
• 800
• 600

Multiple Choice

A rock

• Biotic (living)

• Abiotic (non-living)

Multiple Choice

Tree

• Biotic (living)

• Abiotic (non-living)

Multiple Choice

Sunlight

• Biotic (living)

• Abiotic (non-living)

Multiple Choice

Mushroom

• biotic (livng)

• Abiotic (non-living)

Draw

Mark Density Depending factors with BLUE or GREEN.

Mark Density Independent factors with RED or ORANGE

Multiple Choice

What is happening to the birth rate vs death rate for the population at letter A?

• birth rate is more than the death rate

• death rate is greater than the birth rate

• the birth rate and death rate are equivalent

• population is extinct

Multiple Choice

An extensive drought in the Serengeti Plain threatens wildebeest, giraffe, zebra, and springbok populations.

• Density-Dependent

• Density-Independent

Multiple Choice

Fish on a coral reef stake out their territory and chase away any younger fish that try to live there.

• Density-Dependent

• Density-Independent

Multiple Choice

Due to stress from lack of space, large numbers of female lemmings miscarry their young and fail to reproduce.

• Density-Dependent

• Density-Independent

Multiple Choice

Salinity refers to

• how many plants are in the water

• how many organisms live in the water

• how much salt in is water

Multiple Choice

Which is NOT example of freshwater ecosystems

• Coral Reef
• Lake
• Pond
• Stream

Multiple Choice

Almost ____% of the earth's surface is covered with water.

• 100%

• 75%

• 50%

• 35%

Multiple Select

What are the two most important abiotic factors in determining the productivity, or amount of life in different areas of the ocean? Choose two.

• Amount of sunlight.

• Wind and wave speed

• Nutrient levels in the water

• Amount of dissolved carbon dioxide in the water

Match

Match the following

Primary succession

pioneer species

secondary sucession

climax community

• Primary succession

• pioneer species

• secondary sucession

• climax community

Multiple Choice

Primary succession occurs in an area that has:

• Has Soil

• Has No Soil

• Has Some Soil

• none of these

Multiple Choice

What is the main difference between primary and secondary ecological succession?

• Primary begins WITHOUT soil; Secondary begins WITH soil

• Primary is the first state and secondary is the second stage

• Primary builds plant community; secondary builds animal community.

• Primary begins WITH soil; Secondary begins WITHOUT soil

Multiple Choice

What is an example of an area that is likely to undergo primary succession?

• Glaciers melt and leave exposed rock

• Plants die from drought and decompose

• Land is bulldozed and soil remains

Multiple Choice

What are examples of pioneer species in a primary succession?

• Bushes and Shrubs
• Oak trees
• Mossess and Lichens 
• A rose Bush

Multiple Choice

After a volcanic eruption, volcanic rock is present (but no soil). Which of the following states the most likely order of succession that would be seen?

• Lichens → Shrubs → Grasses → Trees

• Lichens → tree → shrubs→Grasses

• Grasses → Lichens → Shrubs → Trees

• Lichens → Grasses → Shrubs → Trees

Multiple Choice

What is the order of succession shown in this figure?

• A, B, C, D
• B, A, D, C
• C, D, A, B
• D, A, B, C

Multiple Choice

TRUE or FALSE? Invasive species grow quickly due to the lack of predators. This leads to a decline or extinction of the native population.

• True

• False

Multiple Choice

What is an invasive species?

• A native (naturally found) species which are added to an area. 
• A non-native (not naturally found) species added to an area. 
• A keystone species in an environment
• none of the above

Multiple Choice

Biodiversity, refers to

• the same species in a general location

• the number of different species in a given area

• the number of animal species in a given area

• the number of plant species in a given area