Population Density

Q.

What is gene frequency in a population?

Q.

How does gene frequency change?

Q. In exponential growth, the growth curve follows .

1. Z-shaped
2. S-shaped
3. J-shaped
4. straight line

Q. Factors that affect population density are

1. Birth rate
2. Death rate
3. Emigration
4. Immigration
5. All of these
6. None of these

Q. The population of an insect species increases explosively during the rainy season and then disappears at the end of the season. It shows that:

1. Food plants mature and die at the end of the rainy season
2. Population of predators increases enormously
3. Population growth is logistic
4. Population growth is exponential

Q.

When population size is equal to the carrying capacity, the population will show

1. Zero growth

2. Higher mortality than natality

3. Lesser mortality than natality

4. None of the above

Q. The factors that affect population density are birth rate, death rate and dispersal.

1. False
2. True

Q. There are 800 deer in a 400 acre national park. Calculate its population density.

1. 1 deer per acre
2. 1 deer per 4 acre
3. 5 deer per acre
4. 2 deer per acre

Q.

Gene frequency, gene flow, population density, age distribution, over population are the attributes of

1. community

2. population

3. groups

4. individuals

Q. The number of individuals per unit area determines a population's

1. Density
2. Survivorship
3. Age Structure
4. Mortality

Q. Population density is number of individuals per unit mass.

1. False
2. True

Q.

Gene frequency, gene flow, population density, age distribution, over population are the attributes of

1. community

2. population

3. groups

4. individuals