exam 3 last section

Question 1

evolution

Answer 1

change in the inherited traits of populations of organisms from one generation to the next
populations

Question 2

mechanisms of evolution

Answer 2

natural selection
genetic drift (bottle neck and founder effect)
gene flow
mutations
\+selective breeding

Question 3

natural selection

Answer 3

works on individuals with specific advantages

Question 4

how many major extictions

Answer 4

5

Question 5

anthropocene

Answer 5

6th extinction with human causes

Question 6

current human population

Answer 6

7.6 billion people

Question 7

how have humans changed earth

Answer 7

increased land use demands (habitat loss)
demands for resources (degradation of ecosystems)
increase in waste pollution
increase in carbon footprint

Question 8

what shape is the curve of earths population

Answer 8

J-shaped or hockey stick shaped

Question 9

resoration

Answer 9

goal of maintaining natural and healthy earth systems with (despite) human influence
-should be natural, physical integrity, ecological integrity, and sustainable

Question 10

ecological footpring

Answer 10

measure of human pressure on the planet in terms of land area required to support your lifestyle

Question 11

ecosystem services

Answer 11

benefits humans receive from ecosystems

integrates the interest of humans and ecosystems

Question 12

effects of humans

Answer 12

runoff in cities

contaminating water