# Population Growth And Carrying Capacity Activity Answer Key

## Introduction

Population growth and carrying capacity are two important concepts in environmental science. Population growth is the increase in the number of individuals in a population over time, while carrying capacity is the maximum number of individuals that an ecosystem can support. In this blog post, we will discuss the answers to the population growth and carrying capacity activity.

## Population Growth Activity

The population growth activity consists of a scenario where a population of rabbits is introduced to an island. The students are asked to calculate the population growth rate using the formula (birth rate + immigration rate) - (death rate + emigration rate). The answer key for this activity is as follows:

The birth rate is 0.2, the immigration rate is 0.1, the death rate is 0.05, and the emigration rate is 0.05. Therefore, the population growth rate is (0.2 + 0.1) - (0.05 + 0.05) = 0.2.

## Carrying Capacity Activity

The carrying capacity activity consists of a scenario where a population of deer is introduced to a forest. The students are asked to calculate the carrying capacity of the forest using the formula (available resources / resource use per individual). The answer key for this activity is as follows:

The available resources are 1000, and the resource use per individual is 10. Therefore, the carrying capacity of the forest is 1000 / 10 = 100.

## Factors Affecting Carrying Capacity

Carrying capacity is affected by various factors such as food availability, water availability, shelter availability, disease, and predation. If any of these factors change, the carrying capacity of an ecosystem may also change.

## Population Growth and Carrying Capacity Relationship

The relationship between population growth and carrying capacity is important in understanding the dynamics of ecosystems. When a population grows beyond the carrying capacity of an ecosystem, the resources become scarce, and the population may decline as a result. On the other hand, when the population is below the carrying capacity of an ecosystem, the resources are abundant, and the population may increase.

## Sustainable Population

A sustainable population is a population that is in balance with the carrying capacity of the ecosystem. A sustainable population does not strain the resources of the ecosystem and does not cause harm to the environment.

## Conclusion

In conclusion, population growth and carrying capacity are important concepts in environmental science. The population growth and carrying capacity activity is a useful tool to help students understand these concepts. By understanding these concepts, we can better manage our resources and ensure a sustainable future.