AIR Review Ecology

What type of growth is this graph representing

• Logistical Growth

• Exponential Growth

What type of growth is this graph representing?

• Logistical Growth

• Exponential Growth

Biotic or Abiotic factor that restricts the growth of the population

• carrying capacity

• limiting factor

• abiotic factor

• biotic factor

What happens if a population grows past its carrying capacity?

• The population keeps growing

• The population starts to die off

• The entire species will go extinct

• The carrying capacity just increases

What is the approximate carrying capacity of Paramecium aurelia cultured alone?

• 150
• 400
• 450
• 500

The largest number of individuals that an area can support is called its _______.

• limiting factor
• abiotic factor
• resource availability
• carrying capacity

Which organism in the food web shown to the right would

contain the lowest concentration of chemical pollutants?

• producers

• primary consumers

• secondary consumers

• tertiary consumers

The phenomenon by which toxins concentrate in the organisms at higher trophic levels within an ecosystem is known as...

• Biotoxicity

• Biomagnification

• Eutrophication

• Predation

Consider the following food chain:

Algae > Mayfly > Minnow > Trout

In a polluted ecosystem, which organism would likely have the HIGHEST level of toxic chemicals in its body?

• Algae

• Mayfly

• Minnow

• Trout

In which organism would biomagnification be the most concentrated? (Remember the lab: Rabbits eat the grass, the snake eats the rabbit, the hawk eats the snake--the hawk is the apex predator) (a)  

• grass
• rabbit
• snake
• hawk