Exploring Population Ecology Concepts

What are the main factors that characterize different biomes on Earth?

• Sunlight and air pressure

• Wind patterns and humidity

• Soil type and altitude

• Annual rainfall and average temperature

Which of the following is an example of dispersal in plants?

• Birds migrating to warmer regions

• Fish swimming upstream

• Kangaroos moving across Australia

• Wind carrying seeds to new locations

What is the difference between potential range and actual range of a species?

• Potential range is where a species could live, actual range is where it actually lives

• Potential range is where a species currently lives, actual range is where it could live

• Potential range is determined by abiotic factors, actual range by biotic factors

• Potential range is larger than actual range due to human intervention

Which of the following is a biotic factor that influences species distribution?

• Soil pH

• Competition

• Water availability

• Temperature

How does temperature affect the distribution of deer species?

• Temperature has no effect on deer distribution

• Deer can live in any temperature range

• Deer prefer colder climates only

• Different deer species prefer different temperature ranges

What is population density?

• The distribution pattern of a population

• The number of individuals per unit area or volume

• The total number of individuals in a population

• The number of species in a biome

Which of the following is NOT a factor that influences population density?

• Death rates

• Soil type

• Immigration

• Birth rates

Which pattern of dispersion is characterized by individuals being evenly spaced?

• Clustered

• Uniform

• Clumped

• Random

What is an example of clumped dispersion?

• Penguins nesting at equal distances

• Dandelion seeds scattered by the wind

• Wolves hunting in packs

• Trees growing randomly in a forest

Why might a species have a clumped dispersion pattern?

• For protection and hunting efficiency

• To avoid competition

• Due to random environmental factors

• To maximize resource use