Investigating Population

What is direct counting in the context of investigating population?

• Estimating the population based on historical data

• Physically counting the number of individuals in a population

• Using a random number generator to determine the population size

• Asking individuals to self-report their population size

Explain the process of random sampling and its importance in population investigation.

• Random sampling is the process of selecting a sample from a population based on personal preferences.

• Random sampling is the process of selecting a sample from a population without considering the diversity of the population.

• Random sampling is not important in population investigation as it leads to biased results.

• Random sampling is the process of selecting a sample from a population in a way that each individual has an equal chance of being chosen. It is important in population investigation as it helps to ensure that the sample is representative of the entire population, leading to more accurate and reliable results.

How does systematic sampling differ from random sampling in population investigation?

• Systematic sampling involves selecting individuals based on their location, while random sampling involves selecting individuals based on their occupation.

• Systematic sampling involves selecting individuals based on their age, while random sampling involves selecting individuals based on their gender.

• Systematic sampling involves selecting individuals based on their income, while random sampling involves selecting individuals based on their education level.

• Systematic sampling involves selecting every nth individual from the population, while random sampling involves selecting individuals randomly without any specific pattern.

What is capture mark recapture method and when is it used in population investigation?

• A method used to measure the temperature of a habitat

• A method used to estimate the age of individuals in a population

• A method used to estimate population size by capturing, marking, and recapturing individuals.

• A method used to count the number of predators in a given area

Describe the concept of line transect and its application in studying population.

• Line transect is a method used to study population by walking along a straight line and recording all individuals or signs of the population that intersect the line.

• Line transect is a method used to study population by standing in one spot and counting the number of different species in the area.

• Line transect is a method used to study population by digging trenches along a straight line and observing the soil composition.

• Line transect is a method used to study population by flying over a straight line and taking photographs of the population below.

What is a belt transect and how is it used to investigate population?

• A belt transect is a type of musical instrument used to attract organisms for population studies.

• A belt transect is a straight line used to study the distribution and abundance of organisms in an ecosystem by recording all the organisms that touch the line within a specific width.

• A belt transect is a type of exercise equipment used to measure the physical fitness of organisms in an ecosystem.

• A belt transect is a type of fashion accessory worn by researchers to look stylish while studying populations.

Why is it important to use different sampling methods in population investigation?

• To reduce bias and ensure the sample is representative of the population.

• To ensure the sample is biased

• To make the investigation more complicated

• To waste time and resources

Discuss the potential limitations of direct counting in population investigation.

• Not considering demographic changes

• Counting too many people

• Undercounting, overcounting, or inaccuracies in data collection methods

• Using outdated data collection methods

Compare and contrast the advantages of random sampling and systematic sampling in population investigation.

• Random sampling allows for a more representative sample, while systematic sampling is easier to implement and can be more cost-effective.

• Random sampling and systematic sampling both have the same advantages in population investigation.

• Systematic sampling provides a more representative sample, while random sampling is easier to implement and less costly.

• Random sampling is more expensive and time-consuming, while systematic sampling is quick and cost-effective.

Explain the process of capture mark recapture method and its significance in estimating population size.

• The method involves capturing and marking a sample of individuals, releasing them back into the population, and then capturing a second sample to see how many are marked

• The capture mark recapture method is used to estimate the size of a single population at a specific point in time

• It is significant because it is the most accurate method for estimating population size

• The capture mark recapture method is significant in estimating population size because it provides a non-invasive and cost-effective way to estimate the size of a population, especially for species that are difficult to count directly.