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Population refers to all the members of a specific species that are present in a specific location. Play this informative quiz about measuring Populations and see how well do you know the topic. Do you know what population density is? What are the methods of measuring the population of different organisms? What are population pyramids? This quiz has answers to all that and much more. If you like the quiz, share it with your friends. All the best!

• 1.

### What is population density?

• A.

Number of individuals in an area

• B.

Number of individuals per unit area or volume

• C.

Number of adult individuals in an area

• D.

None of the above

B. Number of individuals per unit area or volume
Explanation
Population density refers to the number of individuals per unit area or volume. It is a measure of how crowded or concentrated a population is in a specific geographic area. This measurement helps in understanding the distribution and size of a population in relation to its habitat. By calculating population density, we can assess the level of competition for resources, the potential for disease transmission, and the overall sustainability of a population in a given area.

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• 2.

### Which of the following is/are important measures of the population?

• A.

Population Size

• B.

Population Density

• C.

Both 1 and 2

• D.

Neither 1 nor 2

C. Both 1 and 2
Explanation
Population size and population density are both important measures of the population. Population size refers to the total number of individuals in a given area or group, while population density is the number of individuals per unit area. These measures provide valuable information about the size and distribution of a population, which can be useful for various purposes such as resource allocation, urban planning, and understanding the impact of population growth on the environment. Therefore, both population size and population density are important measures to consider when studying or analyzing a population.

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• 3.

### The organisms in a population are usually distributed in

• A.

Uniform pattern

• B.

Random pattern

• C.

Clumped pattern

• D.

All of the above

D. All of the above
Explanation
The correct answer is "All of the above" because the distribution of organisms in a population can vary depending on various factors. In some cases, organisms may be evenly spaced out, resulting in a uniform pattern. In other cases, they may be randomly dispersed throughout the population, leading to a random pattern. Additionally, organisms may also cluster together in specific areas due to resource availability or social interactions, resulting in a clumped pattern. Therefore, all three patterns can be observed in different populations depending on the circumstances.

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• 4.

### The statistical study of population and change over time is called

• A.

Growth rate

• B.

Demography

• C.

Migrate rate

• D.

Population rate

B. Demography
Explanation
Demography is the correct answer because it refers to the statistical study of population and its characteristics, including size, density, distribution, and changes over time. It involves analyzing birth rates, death rates, migration patterns, and other factors that influence population dynamics. By studying demography, researchers can gain insights into population trends, make projections, and inform policy decisions related to population growth and change.

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• 5.

### Which of the following method is used to determine the population, size, and density of small and immovable organisms?

• A.

Stick and box method

• B.

• C.

Mark-recapture method

• D.

None of the above

Explanation
The correct answer is Quadrat. The quadrat method is used to determine the population, size, and density of small and immovable organisms. It involves placing a square or rectangular frame known as a quadrat on the ground and counting the number of organisms within the frame. This method is commonly used in ecological studies to estimate population sizes of plants, insects, and other organisms in a given area. The data collected from quadrat sampling can provide valuable information about the distribution and abundance of species in an ecosystem.

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• 6.

### Which method is used to measure the population of moving organisms?

• A.

• B.

Stick and Box method

• C.

Mark-recapture method

• D.

None of the above

C. Mark-recapture method
Explanation
The mark-recapture method is used to measure the population of moving organisms. This method involves capturing a sample of the population, marking them in some way (such as tagging or marking with paint), releasing them back into their habitat, and then recapturing another sample at a later time. By comparing the number of marked individuals in the second sample to the total number of individuals captured, an estimate of the total population size can be calculated. This method is commonly used for studying mobile organisms such as birds, mammals, and fish.

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• 7.

### In what type of distribution are individuals clustered in a group?

• A.

Random

• B.

Uniform

• C.

Clumped dispersion

• D.

All of the above

C. Clumped dispersion
Explanation
Clumped dispersion is the correct answer because it refers to a type of distribution where individuals are clustered together in groups. This clustering can occur due to various factors such as resource availability, social behavior, or environmental conditions. In clumped dispersion, individuals are more likely to be found in certain areas or patches rather than being evenly distributed throughout the habitat. This type of distribution is commonly observed in nature, where individuals of a species tend to aggregate in specific locations for various reasons such as protection, mating, or foraging.

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• 8.

### Which method involves capturing a sample animal and marking it?

• A.

• B.

Mark Recapture method

• C.

Both 1 and 2

• D.

Neither 1 nor 2

B. Mark Recapture method
Explanation
The correct answer is Mark Recapture method. This method involves capturing a sample animal, marking it in some way (such as tagging or banding), and then releasing it back into the population. After a period of time, another sample is taken, and the number of marked individuals in the second sample is counted. This allows researchers to estimate the size of the population based on the proportion of marked individuals in the second sample.

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• 9.

### Which of the following species are most likely to be distributed according to a regular pattern?

• A.

Fish

• B.

Creosote bushes

• C.

Termites

• D.

None of the above

B. Creosote bushes
Explanation
Creosote bushes are most likely to be distributed according to a regular pattern. This is because creosote bushes have a tendency to grow in clumps, with individual plants spaced out in a uniform manner. This regular pattern of distribution is often observed in plants that compete for resources such as water and sunlight. In contrast, fish and termites do not typically exhibit a regular pattern of distribution as they are more influenced by factors such as water currents and availability of food sources. Therefore, the correct answer is Creosote bushes.

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• 10.

### Which of the following is not a type of population pyramid?

• A.

Stationary

• B.

Constrictive

• C.

Expansive

• D.

Inverted

D. Inverted
Explanation
An inverted population pyramid is a type of population pyramid where the younger population is smaller than the older population. This means that the number of elderly individuals is greater than the number of young individuals in the population. The other options - stationary, constrictive, and expansive - all describe different types of population pyramids based on the distribution of age groups. Therefore, the correct answer is "Inverted" because it is not a type of population pyramid.

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Amit Mangal |Content Moderator
Amit, a Senior Quiz Moderator at ProProfs.com, utilizes his profound content expertise to design captivating and precise quizzes. His unwavering commitment to maintaining quiz excellence resonates seamlessly with ProProfs.com's vision of fostering knowledge enhancement. Amit holds a strong background in creating quizzes on history, politics, current affairs, etc.

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• Jan 18, 2023
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• Jan 17, 2023
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