Question 1

Which terrestrial biome is characterized by ground that remains permanently frozen, and what is the ecological term for this condition?

Accepted Answer

Tundra; permafrost

Question 2

In the graph of mean annual temperature vs. mean annual precipitation, which biome is most likely represented by region 'c' (high temperature, high precipitation)?

Accepted Answer

Tropical rainforest

Question 3

Which biome is associated with deciduous trees such as hickory and birch?

Accepted Answer

Temperate broadleaf forest

Question 4

The Mediterranean climate, characterized by mild, wet winters and hot, dry summers, is typical of which biome?

Accepted Answer

Chaparral

Question 5

Which biome is home to large populations of ants, antelopes, and lions?

Accepted Answer

Savanna

Question 6

Which biome is best represented by the North American plains?

Accepted Answer

Temperate grassland

Question 7

In the population growth curves shown, what type of growth does the blue curve represent, and what is its mathematical formula?

Accepted Answer

Exponential growth; $N(t) = N_0 e^{rt}$

Question 8

What does the dotted line in the logistic growth curve represent?

Accepted Answer

Carrying capacity ($K$)

Question 9

At what point is population growth most rapid in the logistic growth model?

Accepted Answer

When the population size is at half the carrying capacity ($N = \frac{K}{2}$)

Question 10

Which population growth curve (exponential or logistic) better represents global human population growth over the past 200 years, and why?

Accepted Answer

Exponential, because human populations have not yet reached environmental limits globally

Question 11

Based on the age structure diagrams, which country is most likely to experience rapid population growth in the future?

Accepted Answer

Nigeria

Question 12

If you were a politician in Japan, which societal need would you prioritize based on the age structure diagram?

Accepted Answer

Increasing healthcare and retirement support for an aging population

Question 13

Which of the following best describes the age structure of a population that is likely to decline in size in the future?

Accepted Answer

A narrow base and a wide top

Question 14

A population of rabbits is introduced to an island with unlimited resources. Which equation best predicts their population growth over time?

Accepted Answer

$N(t) = N_0 e^{rt}$

Question 15

Which biome is characterized by coniferous trees such as spruce, fir, pine, and hemlock?

Accepted Answer

Taiga (Boreal forest)

Question 16

If a country has a large proportion of its population in the prereproductive age group, what is the most likely demographic trend for the next few decades?

Accepted Answer

Rapid population growth

Question 17

Which of the following is a real-world example of a population experiencing logistic growth?

Accepted Answer

A population of seals limited by available fish and territory

Question 18

Which of the following best explains why exponential growth cannot continue indefinitely in natural populations?

Accepted Answer

Resources become limited, leading to competition and environmental resistance

Question 19

If a population's growth rate slows as it approaches carrying capacity, which mathematical model best describes this trend?

Accepted Answer

$N(t) = \frac{K}{1 + \frac{K-N_0}{N_0}e^{-rt}}$

Biology Study Guide: Terrestrial Biomes, Population Growth, and Age Structure

Study Guide - Practice Questions

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