Question

Sea lions can live into their thirties and produce no more than one pup per year. A sea lion is a(an) __ species.

		type II
		opportunistic
		K-selected
		r-selected
		type III

2.5 points   

QUESTION 2

Which of the following factors is NOT a density-independent factor?

		earthquakes
		snowstorms
		competition
		hurricanes
		tsunamis

2.5 points   

QUESTION 3

In which type of population distribution would plot sampling be most accurate?

		clumping
		uniform
		random
		random and clumping
		uniform and clumping

2.5 points   

QUESTION 4

Density-independent controls over population growth include

		parasites.
		temperature.
		disease.
		competition.
		all of these.

2.5 points   

QUESTION 5

On Easter Island in the Pacific Ocean, from original population of 100 humans the population rose to around 3000. In time, the entire island was under cultivation and eventually the soils became so over cultivated that crops could no longer be grown. People started dying from starvation and disease. This Easter Island population had exceeded its

		density-independent factors.
		biotic potential.
		logistic growth.
		carrying capacity.
		opportunistic life history.

2.5 points   

QUESTION 6

The worldwide total fertility rate changed from __ children per woman to ___ children per woman.

		2.5...6.5
		6.5...2.5
		1.5...8.5
		8.5...1.5
		3.5...4.5

2.5 points   

QUESTION 7

Selecting the Exception

Four of the five answers listed below follow a type I survivorship curve. Select the EXCEPTION.

		deer
		sea turtles
		bears
		humans
		elephants

2.5 points   

QUESTION 8

Selecting the Exception

Four of the five answers listed below are density-independent factors. Select the EXCEPTION.

		nutrient supply
		temperature drop
		drought
		volcanic eruption
		hard freeze

2.5 points   

QUESTION 9

Which of the following is NOT a density-dependent, growth-limiting factor?

		pathogens
		parasitism
		drought
		competition
		species interaction

2.5 points   

QUESTION 10

Which of the following is NOT a reason for the rapid explosion of the human population?

		increase in carrying capacity
		expansion into new habitat
		removal of limiting factors
		reproduction occurring earlier in the life cycle
		longer generation times

2.5 points   

QUESTION 11

In which demographic model is population growth the fastest?

		pre-industrial
		transitional
		industrial
		postindustrial
		transformational

2.5 points   

QUESTION 12

Which of the following is true of a population?

		Members of a population are all genetically identical.
		Members of a population live together and interbreed.
		A population may include both predators and prey.
		Members of a population spend much of their time living apart.
		More than one of these is true.

2.5 points   

QUESTION 13

Most octopuses die early in life; those that survive can live up to 5 years. Octopuses are best characterized by a type __ survivorship curve.

		I
		II
		III
		more than one of these
		none of these

2.5 points   

QUESTION 14

Which of the following is NOT related to the study of population demographics?

		in a lake, there are 5 rainbow trout per 50 square meters
		in Yellowstone National Park, there are approximately 3,000 American bison
		African wild dogs live in packs distinct from each other and scattered through the savanna
		cheetahs are most successful at catching gazelles
		cacti grow in the desert more or less evenly spaced from each other

2.5 points   

QUESTION 15

Population growth

		is limited by only one factor at a time.
		increases arithmetically.
		increases indefinitely.
		is limited by the carrying capacity.
		is represented by a minimum of two different sizes.

2.5 points   

QUESTION 16

The carrying capacity of an environment is increased by

		pollution.
		predation.
		disease.
		population growth.
		none of these.

2.5 points   

QUESTION 17

A population of 1,000 individuals with a per capita growth rate of 1.0 per year in an environment with unlimited resources will number ____ four years later.

		1,000
		1,400
		4,000
		16,000
		160,000

2.5 points   

QUESTION 18

The number of individuals that make up a population gene pool is the

		population distribution.
		population growth.
		population birth rate.
		population size.
		carrying capacity.

2.5 points   

QUESTION 19

In a population of Asian elephants, the death rate equals the birth rate. This population has

		reached its biotic potential.
		achieved zero population growth.
		not exceeded its carrying capacity.
		exponential growth.
		geometric growth.

2.5 points   

QUESTION 20

A group of organisms of the same species that live in a specific location is called a(n)

		community.
		population.
		species.
		genus.
		biome.

Answer 1

Question number	Answer
1	K Selected
2	Competition
3	Clumping and Random
4	Temperature
5	Carrying capacity
6	6.5....2.5
7	Humans
8	Nutrient supply
9	drought
10	longer generation times
11	Transitional
12	Members of a population live together and interbreed.
13	III
14	cheetahs are most successful at catching gazelles
15	is limited by the carrying capacity
16	on population growth
17	16,000
18	population size
19	achieved zero population growth
20	population