The correct answer is Option D) Species interaction
Species interaction is an attribute of a community.
Attributes of population are the characteristics that can be measured for an individual that are within a population.
Read more from chapter: Human population
The correct answer is Option D) Species interaction
Some real-life examples of attributes of a population are
1. The average height of people in the United States is 5'9" for men and 5'4" for women.
2. The average lifespan of people in Japan is 84 years.
3. The percentage of people in the United States who are married is 50%.
4. The percentage of people in the United States who have a college degree is 33%.
1. What is the difference between an attribute of a population and an attribute of an individual?
2. What are some examples of attributes of a population?
3. What are some examples of attributes of an individual?
Human population is the number of individuals in a particular area over a specific period of time. The science of studying the human population is called Demography.
The measurements for demographic
Birth rate: Number of live births per 1000 people in 1 year is called birth rate.
Mortality: It is the death of individuals per 1000 people in 1 year
Fertility rate: The average number of live birth per woman
Life expectancy: The measure of the average time span an individual is expected to live.
Sex Ratio: The ratio of males to females in a population is essential for understanding the reproductive dynamics and also the breeding potential of the population.
The increase in population can be attributed by immigration and natality.
The decrease in the population can be attributed to emigration and mortality
Read more:
List I | List II | ||
A | Logistic growth | I | Unlimited resource availability condition |
B | Exponential growth | II | Limited resource availability condition |
C | Expanding age pyramid | III | The percent individuals of pre-reproductive age is largest followed by reproductive and post reproductive age groups |
D | Stable age pyramid | IV | The percent individuals of pre-reproductives and reproductive age group are same |
Match List I with List II.
List I (Interacting species) | List II (Name of interaction) | ||
A | Leopard and a Lion in a forest/grassland | I | Competition |
B | A Cuckoo laying egg in a Crow’s nest | II | Brood parasitism |
C | Fungi and root of a higher plant in Mycorrhizae | III | Mutualism |
D | A cattle egret and a Cattle in a field | IV | Commensalism |
Choose the correct answer from the options given below
Match List I with List II:
List I (Interaction) | List II (Species A and B) | ||
A. | Mutualism | I. | +(A), O(B) |
B. | Commensalism | II. | –(A), O(B) |
C. | Amensalism | III. | +(A), –(B) |
D. | Parasitism | IV | +(A), +(B) |
Choose the correct answer from the options given below:
List I | List II | ||
---|---|---|---|
A | Two or more alternative forms of a gene | I | Back cross |
B | Cross of F1 progeny with homozygous recessive parent | II | Ploidy |
C | Cross of F progeny with any of the parents | III | Allele |
D | Number of chromosome sets in plant | IV | Test cross |
The following graph represents the T-V curves of an ideal gas ( where T is the temperature and V the volume) at three pressures P1, P2 and P3 compared with those of Charles's law represented as dotted lines.
Then the correct relation is :