1. A population is growing at a rate of 2, 4, 8, 16, 32. Which type of growth does this describe?

Question

linear
logistic
exponential
negative

2. The overall population of a species has increased. What could have occurred to allow this to happen?
The emigration rate is greater than the death rate.
The death rate of the population is greater than the immigration.
The birth rate of the population is less than the death rate.
The immigration of the population is greater than the emigration.

3. Which type of population growth is shown in this graph?
exponential
logistic
linear
limited
Image to Text

Population size
Time

Summary

The image is a graph depicting population size over time. The graph shows a logistic growth curve, starting with a slow increase in population size, followed by a rapid growth phase, and finally leveling off as it reaches a plateau. This pattern suggests that the population grows quickly after an initial period, then stabilizes as it approaches the carrying capacity of the environment.

4. Which type of population growth is shown in this graph?
exponential
linear
logistic
limited
Image to Text

Population of Bacteria
Population Size
Generation

Summary

The image is a graph showing the growth of a bacterial population over 10 generations. The x-axis represents the generation number, ranging from 0 to 10, and the y-axis represents the population size, ranging from 0 to 35,000. The graph demonstrates an exponential growth pattern, with a slow increase in population size during the initial generations, followed by a rapid rise after the 6th generation, reaching approximately 35,000 by the 10th generation.

5. What do birth rate, death rate, immigration, and emigration determine about a population?
carrying capacity
population growth
population type
limiting factors

6. A population of sixteen emu grew to thirty-nine in one year. After two years, the population had grown to forty-eight. The maximum number of emu that the environment can support is approximately sixty due to limited resources such as food and water.

What is the carrying capacity of the emu population?
sixteen
thirty-nine
forty-eight
sixty

7. The maximum number of wolves that can survive in a particular forest is 230. What is this number called?
limit capacity
carrying capacity
limiting factor
logistic factor

8. Which type of growth can occur only when a population has unlimited resources?
limited
logistic
exponential
negative

9. A scientist was studying a population of elephants. The first year, he counted a population of 80. Over the next eight years, the population’s numbers were 94, 100, 103, 110, 125, 120, 125, 120. What appears to be the carrying capacity for this population?
120
124
125
126

10. In a population of deer in one year, six deer were born, five deer emigrated, three deer were killed by predators, and one deer immigrated. What can be determined from this information?
Population growth is decreasing.
Population growth is increasing.
Population growth stays the same.
Population reaches the carrying capacity.

Answer 1

1. Exponential - The growth pattern given (2, 4, 8, 16, 32) demonstrates exponential growth since each number is double the previous one.

2. The immigration of the population is greater than the emigration. - This would lead to an overall increase in the population.

3. Logistic - The description indicates a logistic growth curve where the population grows quickly and then levels off as it reaches carrying capacity.

4. Exponential - The graph shows a rapid increase in bacterial population size, characterizing exponential growth.

5. Population growth - Birth rate, death rate, immigration, and emigration determine how a population grows.

6. Sixty - The carrying capacity is defined as the maximum number that the environment can support, which is mentioned as sixty.

7. Carrying capacity - This term describes the maximum number of individuals in a species that an environment can sustain.

8. Exponential - Exponential growth can occur only when a population has unlimited resources.

9. 125 - The carrying capacity appears to be the highest stable population size observed from the data provided.

10. Population growth is decreasing. - The information suggests that the net growth is negative (6 born - (5 emigrated + 3 killed + 1 immigrated) = -3).

Answer 2

Use the drop-down menu to match the following definitions to the corresponding terms.

The total variety of organisms that live in the biosphere

A group of organisms that breed and produce offspring that can breed

All of the biotic and abiotic factors in an area

the options for each od them are species,ecosystem or biodiversity

Answer 3

Here are the correct matches for the definitions to the corresponding terms:

1. The total variety of organisms that live in the biosphere - Biodiversity
2. A group of organisms that breed and produce offspring that can breed - Species
3. All of the biotic and abiotic factors in an area - Ecosystem