📚

All Subjects

♻️

AP Enviro

👪

Unit 3

3.11 MC Answers and Review

5 min read•december 21, 2021

AP Environmental Science ♻️

252 resources

See Units

Answers and Review for Multiple Choice Practice on Populations

Image from Pixabay

Plant and animals have adapted into millions of different species each specialized to its unique habitat.

⛔STOP!⛔ Before you look at the answers make sure you gave this practice quiz a try so you can assess your understanding of the concepts covered in unit 1. Click here for the practice questions: AP Environmental Science Unit 3 Multiple Choice Questions.

Facts about the test: The AP Environmental Science exam has 80 multiple choice questions and you will be given 1 hour 30 minutes to complete the section. That means it should take you around 17 minutes to complete 15 questions.

*The following questions were not written by CollegeBoard and although they cover information outlined in the AP Environmental Science Course and Exam Description the formatting on the exam may be different.

1. As people develop more and more natural habitats into cities, ___ species tend to be better at adapting to living with humans.

A. invasive

B. keystone

C. generalist

D. specialist

Answer: generalist species are able to adapt to new environments and live within a wide range of conditions. Invasive species are often generalist but not always adapted to living with humans.

📄 Study AP Environmental Science, Unit 3.1: Generalist and Specialist Species

2. Which of the following would be an example of a K-selected species?

A. Cows

B. Mice

C. Cats

D. Salmon

Answer: K-selected species tend to be large and spend a lot of paternal time on a few offspring.

📄 Study AP Environmental Science, Unit 3.2: K-Selected r-Selected Species

3. Which of the following is not a trait of r-selected species?

A. Tend to be small

B. Have long life spans

C. Mature early

D. Spend very little time with their offspring

Answer: r-selected species tend to be small and reproduce very rapidly. An example would be mice.

📄 Study AP Environmental Science, Unit 3.2: K-Selected r-Selected Species

4. Oysters release thousands of eggs each time they reproduce. The majority of these offspring are eaten before they even have a chance to develop a shell and attach to the substrate. However, if they do, oysters can live for many years. This is an example of

A. Type I survivorship curve

B. Type II survivorship curve

C. Type III survivorship curve

D. Type IV survivorship curve

Answer: Type III: Concave curve, this is typical for r - selected organisms that produce many offspring with low survival rates. There is no Type IV survivorship curve.

📄 Study AP Environmental Science, Unit 3.3: Survivorship Curves

5. Which of the following organisms would tend to have a Type I: Convex curve to represent its survivorship?

A. Elephants

B. Whitetail deer

C. Giant Squid

D. Mallard Ducks

Answer: Type I: Convex curve represents organisms that live a long time and tend to have a low death rate until an average age.

📄 Study AP Environmental Science, Unit 3.3: Survivorship Curves

6. When a species in a given area runs out of available food due to overpopulation this is an example of

A. Resource Provisioning

B. Adaptation

C. Resource Partitioning

D. Carrying Capacity

Answer: The carrying capacity of an ecosystem is the total amount of organisms that can live there given the available resources.

📄 Study AP Environmental Science, Unit 3.4: Carrying Capacity

7. When a population exceeds its carrying capacity, what is likely to follow?

A. Extinction

B. Dieback

C. Exponential growth

D. Logistic growth

Answer: After a population hits carrying capacity, there are no longer enough resources to support the numbers and there will be dieback to smaller population size.

📄 Study AP Environmental Science, Unit 3.4: Carrying Capacity

8. When the resources needed by a population of organisms are abundantly available, growth is likely to

A. Stabilize

B. Decrease

C. Fluctuate

D. Excelerate

Answer: When resources are available the population would be under its carrying capacity and would experience accelerated growth.

📄 Study AP Environmental Science, Unit 3.4: Carrying Capacity

9. A country with a low birth rate and a stable death rate is likely to experience

A. Exponential growth

B. Diminishing population

C. Expanding population

D. Logarithmic growth

Answer: With a low birth rate over time the total population will diminish, There will be an inverted pyramid with a large population of elderly.

📄 Study AP Environmental Science, Unit 3.6: Age Structure Diagrams

10. Access to education and healthcare typically lead to

A. reduced birth rate and reduced death rate

B. reduced birth rate and increased death rate

C. increased birth rate and reduced death rate

D. increased birth rate and increased death rate

Answer: Education and healthcare typically lead to access to family planning tools and decreased birth rate. As well as reduced death rate due to access to medical attention.

📄 Study AP Environmental Science, Unit 3.7: Total Fertility Rate

11. Equal access to education for females tends to lead to

A. Women choosing to use family planning tools.

B. Women working in healthcare fields.

C. Women having children later in life.

D. Women choosing to have more children.

Answer: Studies have shown that when women have equal access to education they tend to have their first child later in life.

📄 Study AP Environmental Science, Unit 3.7: Total Fertility Rate

12. Currently, Earth's human population is

A. Stable

B. Decreasing

C. Increasing slowly

D. Increasing exponentially

Answer: Human population is increasing exponentially due to increased access to medical care and the survival rate of infants and the elderly increasing

📄 Study AP Environmental Science, Unit 3.8: Human Population Dynamics

13. If a country is experiencing a TFR at replacement level and immigration equal to emigration what must be true

A. The population is in a transition phase

B. The population is declining

C. The population is stable

D. The population is growing

Answer: The population would be stable because the number of people in and out are equal and the birth and deaths are equal.

📄 Study AP Environmental Science, Unit 3.8: Human Population Dynamics

14. Which of the following is NOT a way humans have altered their natural carrying capacity?

A. Building vertically

B. Irrigation methods

C. Intensive animal farming

D. Faster production of material goods

Answer: Producing goods faster only uses the available resources faster and would cause humans to hit a carrying capacity sooner.

📄 Study AP Environmental Science, Unit 3.8: Human Population Dynamics

15. Of the following countries which has the fastest-growing population rate?

A. U.S.A.

B. China

C. Denmark

D. France

Answer: Although China is still considered in a developmental stage, the government imposed a one-child policy that drastically slowed growth. The US is the fastest-growing of the others provided.

📄 Study AP Environmental Science, Unit 3.9: Demographic Transition

What can we help you do now?

🔍Study for Unit 4

🦘Jump to AP Environmental Science Unit 4 Multiple Choice Questions

🤝Connect with other students studying AP Environmental Science with Hours

Browse Study Guides By Unit

🏜Unit 1 – The Living World: Ecosystems

🐠Unit 2 – The Living World: Biodiversity

👪Unit 3 – Populations

3.0Unit 3 Overview: Populations

3.1Generalist and Specialist Species

3.2K-Selected r-Selected Species