Environmental Changes EOC

Multiple Choice

Define deforestation

• The cutting down & removal of all or most of the trees in a forested area.
  
• A broadleaf evergreen forest that is found in hot regions, receives a lot of rain and that has very tall trees.
  
• The act or process of damaging or ruining something.  To treat poorly or w/out respect.

Multiple Choice

What is the relationship between a keystone species and its ecosystem

• A keystone species is always the top predator in an ecosystem.

• A keystone species is essential to maintain balance and biodiversity in its ecosystem.

• A keystone species provides energy to all other organisms in the ecosystem.

Multiple Choice

Why are bees considered a keystone species?

• The honey they make supports the bear population

• They pollinate flowers that produce fruit which supports the ecosystem

• They sting when threatened

• They live in hives

Multiple Choice

How would beavers building a dam cause an increase in the fish population? The dam

• blocks a river and creates a lake.

• causes predators to hunt more fish.

• forces many birds to leave the ecosystem.

• removes trees from around the river.

Multiple Choice

All of the following are examples of environmental changes that can be caused by humans except - 

• clearing land for housing developments
• pesticides
• volcanic eruption
• pollution

Multiple Choice

An organism that cannot adapt to changes in the environment will most likely - 

• produce more offspring
• die
• change its traits to survive
• store more food

Multiple Choice

• F
• G
• H
• J

Multiple Select

Deforestation does not cause animals to lose their habitats.

• True

• False

Multiple Choice

• Cattle that eat grass and feed
• Goats that eat weeds and shrubs
• Turkeys that eat seeds and fruit
• Hogs that eat fruit, seed and feed

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

The primary cause of the introduction of invasive species introduction is ---

• too much food.

• human action.

• weather events.

• asteroids.

Multiple Choice

Invasive species alter the ecosystem by _____ in number quickly. This leads to _____ food for the native species.

• increasing, less

• increasing, more

• decreasing, less

• decreasing, more

Multiple Choice

• Soil
• Sunlight
• Water
• Oxygen

Multiple Choice

• F
• G
• H
• J

Multiple Choice

• A
• B
• C
• D

Multiple Choice

Where is pollution found on the earth?
 
 
  

• only in the air 
• only on the land 
• only in the water 
• on land, in the air, and in the water