Abiotic

_______________ are the living factors in an environment and may include food sources and other populations.

• Community
• Competition
• Biotic factors
• Population

When predator numbers decrease, prey numbers ____________ because fewer of them are being consumed.

• decrease
• increase
• stay the same
• divide in half

 Copper interferes with photosynthesis algae and other aquatic plants.
What would be the most likely result of an accidental spill of these compounds in an aquatic environment?

• The fish would grow larger than usual.
• The zooplankton population would increase
• The plants would increase in size but decrease in number
• The plant populations would be reduced.

If a disease destroying barley plants in a field swept through an ecosystem, what would happen to the barley eating bird population in the the field ?

• The bird population would stay the same
• The bird population would infinitely increase
• The bird population would decrease

A community comprising all the biotic and abiotic factors in an area and all the interactions among them

• ecosystem

• population

• species

• Environmental interaction

Which of the fallowing has only abiotic factors?

• Sunlight, algae, and temperature
• Guppy, crab, oxygen
• Sunlight, soil, and weather
• Algae, temperature, and dog

What are the biotic factors in this image?

• sunlight, elephants, and grasses
• sunlight, water,  and air
• elephants, plants, trees 

Environmental factors that keep a population from increasing. 

• Carrying Capacity
• Limiting Factors

The largest number of individuals that an environment can support long term is...

• carrying capacity

• emigration

• immigration

• population density

Which of the following is an example of an interaction between a living and nonliving organism?

• a snake using a mouse for food
• a worm using the soil as shelter
• a bird using an insect for food