ecology GLOBAL CONSERVATION

Question 1

conservation biology

Answer 1

conserve biological diversity at all levels

Question 2

levels of biodiversity

Answer 2

genetic diversity, species diversity, ecosystem diversity

Question 3

genetic diversity

Answer 3

enables adaptation to environment changes

Question 4

spices diversity

Answer 4

maintaining communities and food webs

Question 5

ecosystems diverstiy

Answer 5

provides life sustaining services

Question 6

four major threats to biodiversity

Answer 6

habitat loss, introduces species, over harvesting, global change

Question 7

eutrophication

Answer 7

excess nitrogen from agriculture enters aquatic ecosystems

Question 8

biological magnification

Answer 8

process by which toxic substances accumulate in increasingly high concentrations in progressively higher trophic levels

Question 9

greenhouse effect

Answer 9

absorption of heat the earth experiences due to certain greenhouse gasses; CO2 and water vapor absorb infrared radiation and re reflect back toward earth