Population Test

Question 0

Mortality

Answer 0

death rate

Question 1

Natality

Answer 1

Birthrate

Question 2

population growth equation

Answer 2

PGR=BR-DR

Question 3

what is population growth greatly affected by?

Answer 3

sex ratio

Question 4

how many males per females in human population?

Answer 4

106:100

Question 5

Age distribution

Answer 5

directly tied to population growth rate

Question 6

density/spatial distribution

Answer 6

the number of organisms per unit of area (d=n/a)

n=number of organisms
a=area

Question 7

social factors that decrease population growth

Answer 7

abortion

birth control

Question 8

social factors that increase population growth

Answer 8

polygamy

tv/social media encouraging sex

Question 9

economic factors that decrease population growth

Answer 9

lower income families
having to pay for school
age

Question 10

economic factors that increase population growth

Answer 10

higher income families

family businesses

Question 11

political factors that decrease population growth

Answer 11

China’s law of one child

under 18 abortion laws

Question 12

political factors that increase population growth

Answer 12

no U.S laws preventing number of kids

Question 13

misconceptions about evolutionary theory

Answer 13

1. individuals adapt and evolve
   (genes change over time and species evolve)
2. Humans have evolved from monkeys
   (humans and monkeys share a common ancestor)
3. evolution has solved the origin of life (evolution is about how life changed and is changing)

Question 14

Thomas Malthus

Answer 14

• 1st to critically think about human population,
• believed that human population increased geometrically or exponentially,
• and that population would outgrow supply.

Question 15

R-Strategists

Answer 15

never reach carrying capacity
small organisms
short life span
many offspring

ex:bacteria

Question 16

K-strategists

Answer 16

reach carrying capacity 
large organisms 
long lives 
few offspring 
controlled by density dependent factors

ex: humans, lions, elephants

Question 17

population curves phases

Answer 17

start

1. lag phase
2. exponential growth phase
3. deceleration phase