chapter 18: conservation biology

Question 1

biodiversity

Answer 1

number of alleles in a species
number of species in an ecosystem
number of ecosystems in a region

Question 2

conservation biology

Answer 2

addressing how to preserve the natural resources of earth
- biology, economics, psychology, sociology, political science

Question 3

which biomes have the highest biodiversity

Answer 3

tropical rainforests, coral reefs, islands

Question 4

mass extinction

Answer 4

large proportion of species are lost in short periods of time

Question 5

background extinciton

Answer 5

occur at lower rates during times other than mass extinction

Question 6

what influences extinction

Answer 6

geographic range, local population size, habitat tolerance

Question 7

what are disruptions of ecosystems

Answer 7

1. invasive species
2. acid rain and fossil fuels
3. global climate change and greenhouse effect
4. depletion of ozone layer

Question 8

invasive species

Answer 8

a species introduced by human activities to areas other than the species native range

Question 9

formation of acid rain

Answer 9

burning fossil fuels releases the gases sulfur dioxide and nitrogen dioxide
combines with water vapor which makes sulfuric acid and nitric acid

Question 10

effects of acid rain

Answer 10

direct damage contact of living tissue with acidic water; indirect damage by carrying away essential nutrients for plant growth

Question 11

effects of global climate change

Answer 11

destroys habitats, temperature specific animals, migration patterns