practical quiz

What is population distribution?

• Population distribution shows how the organisms of the same species are able to spread out in a habitat.

• The number of organisms present in a population

• The number of individuals of a species per unit area of a habitat

Which of the following are factors that affect population distribution in plants?

(Choose 3)

• Breeding site

• Mineral salt content

• Food supply

• Light

• pH of soil

Which are NOT factors that affect the population distribution of animals?

(Choose 2)

• Food supply

• Light

• Breeding site

• pH of soil

• Temperature

Which are the THREE patterns of population distribution above?

(Choose 3)

• Clumped

• Distributed

• Grouped

• Random

• Uniform

Which are the TWO methods for estimating population size?

(Choose 2)

• Quadrat sampling technique

• Census taking

• Counting population technique

• Capture-mark-release-recapture technique

Which are the THREE parameters of sampling quadrat?

(Choose 3)

• Frequency

• Density

• Size

• Coverage percentage

How to increase/ improve the accuracy of quadrat sampling technique?

• Use smaller quadrat size

• Use more quadrats

• Use larger quadrat size

• Place quadrat more randomly

The picture represents a sunny, dry desert. Which factor most likely limits the desert’s carrying capacity for plant life?

• the number of animals that eat plants

• the availability of space to grow

• the amount of sunlight

• the availability of water

A population of salamanders that live in a river require clear, fresh water to survive. New housing developments have caused tons of sediment to muddy the river. Which of these most likely will happen to the salamander population?

• The salamanders will decrease in number because of the water quality.

• The salamanders will move across land to another river.

• The salamanders will quickly adapt to living in the muddy water.

• The salamanders go live on land.

This is the most commonly seen distribution pattern. Example: wolves. This is usually because there are resources found in particular areas and the organisms need more space to survive.

• random

• clumped

• uniform