Self-Quiz Chapter 44

The human population is now about 7 billion. It reached 6 billion in A 2007 B 1999 C 1802 D 1350

B

All members of a cohort are the same A age B size C sex D weight

A

Biotic potential A. Maximum rate of increase per individual under ideal conditions B. Population growth plots out as an S-shaped curve C. Maximum number of individuals sustainable by the resources in a given environment D. Population growth plots out as a j shaped curve E. Essential resource that restricts population growth when scarce

A

For a given species, the maximum rate of increase per individual under ideal conditions is its ____ A. Biotic potential B Carrying Capacity C Environmental resistance D density control

A

Most commonly, individuals of a population show a _____ distribution within their habitat. A. Clumped B. Random C. Nearly Uniform D. None

A

Species that live in unpredictable habitats are more likely to show traits that are favored by A r selection B k selection

A

A population of worms is growing exponentially in a compost heap. Thirty days ago there were 400 worms and now there are 800. How many worms will there be in thirty days from now? A 1200 B 1600 C 3200 D 6400

B

Logistic growth A. Maximum rate of increase per individual under ideal conditions B. Population growth plots out as an S-shaped curve C. Maximum number of individuals sustainable by the resources in a given environment D. Population growth plots out as a j shaped curve E. Essential resource that restricts population growth when scarce

B

Carrying Capacity A. Maximum rate of increase per individual under ideal conditions B. Population growth plots out as an S-shaped curve C. Maximum number of individuals sustainable by the resources in a given environment D. Population growth plots out as a j shaped curve E. Essential resource that restricts population growth when scarce

C

Suppose 200 fish are marked and released in a pond. The following week, 200 fish are caught and 100 of them have marks. There are about ____ fish in this pond A 200 B 300 C 400 D 2000

C

A life's history pattern is a set of adaptions that influence the individuals_______ A Longevity B Fertility C age at reproductive maturity D All of the above

D

Compared to the less developed countries, the highly developed ones have higher A death rate B birth rate C total fertility rate D resource consumption rate

D

Exponential Growth A. Maximum rate of increase per individual under ideal conditions B. Population growth plots out as an S-shaped curve C. Maximum number of individuals sustainable by the resources in a given environment D. Population growth plots out as a j shaped curve E. Essential resource that restricts population growth when scarce

D

The ecological footprint of a person in the USA is about ____ that of a person in india A half B Twice C one-ninth D nine-tenths

D

____ is a density-independent factor that influences population growth A resource competition B Infection disease C Predation D Harsh Weather

D

Limiting factor A. Maximum rate of increase per individual under ideal conditions B. Population growth plots out as an S-shaped curve C. Maximum number of individuals sustainable by the resources in a given environment D. Population growth plots out as a j shaped curve E. Essential resource that restricts population growth when scarce

E

The rate at which population size grows or declines depends on the rate of _________ A Births B Deaths C Immigration D Emigration E a and b F all

F