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Stack #694269
Chapter 5 Test Review
| Question | Answer |
|---|---|
| What factor does not have a role in the growth rate? | Demography |
| What does the range of a population tell you that density does not? | Areas inhabited by a population |
| When organisms move into a given area from another area, what is taking place? | Immigration |
| When individuals in a population reproduce at a constant rate, what is it called? | Exponential Growth |
| A biotic or an abiotic resource in the environment that limits the population size is know as what? | Limiting Factor |
| The number of organisms that an environment can support over a long period of time is called what? | Carrying Capacity |
| About five hundred years ago the world's population did what? | Started increasing |
| By the year 2050, they anticipate the world's population will reach what number? | 9 billion |
| True/False: The number of individuals per unit area is a population's growth rate. | False |
| True/False: The movement of individuals out of an area in emigration. | True |
| True/False: Exponential Growth occurs when the individuals in a population reproduce at a constant rate. | True |
| True/False: One of the best-known mechanisms of population control is the parasite/host relationship. | False |
| True/False: Predators can limit the size of populations by weakening their host causing disease or death. | False |
| True/False: Density- dependent limiting factors affect all populations whether the population is two or two hundred. | False |
| True/False: An indication that a country has completed the demographic transition is a low birth rate and low death rate. | True |
| A population of bacteria with a limited supply of nutrients will eventually show a growth typical of what model? | Logistic Model |
| Competition, predation, parasitism, and ___________ are density dependent limiting factors. | Disease |
| Social and ______________ factors explain why some countries have high growth rates while other countries grow slowly, or not at all. | Economic |
| What are the four main characteristics of a population? | Geographic distribution, density, growth rate, age structure |
| A small farming community in Texas covers 14 sq. miles. There are 420 individuals that live in the community. What is the population density of this community? | 30 per square mile |
| Which of the following describes how fast the human population is growing? | Exponentially |
| Which are two ways a population can decrease in size? | Decreased birth rate, emigration |
| Water lilies do not grow in the desert sand because water availably to these plants is considered _____________. | A limiting factor |
| Which of the following would be least likely to be affected by a density-dependent limiting factor? | A small-scattered population |
| Human population growth has slowed down in which of the following countries? | United States |
| The demographic transition is a change from high birth rates and high death rates to _____________. | Low birth rates and low death rates |
| True/False: Human activities such as damming rivers are density- independent factors. | True |
| True/False: The human population grew slowly from the beginning of human existence and then began to grow exponentially about 200 years ago. | False |
Created by:
kirbysmith
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