exam 3 ecosystems

Question 1

GPP

Answer 1

gross primary production

plants concert sunlight to food for maintenance and growth. During the day (photosynthesis)

Question 2

R

Answer 2

plant respiration

use of energy to drive cellular process. oxygen and glucose required. both day and night

Question 3

NPP

Answer 3

GPP-R

Question 4

food web

Answer 4

sequence of food (energy) transferred from trophic level to trophic level

Question 5

plant communities established

Answer 5

over time

Question 6

plant sucession

Answer 6

a process more or less predictable and orderly changes in composition or struucure of an ecological community

Question 7

primary sucession

Answer 7

bare rock

not previously vegitated

Question 8

secondary sucession

Answer 8

soil present
previously vegetated
-occurs after major disturbances
ex)aquatic sucession

Question 9

physical limiting factors (limit biota)

Answer 9

light
temp
water availability
diet availability
topography
distribution or soils
connectivity of viable habitats

Question 10

biological limiting factors

Answer 10

competition
ammensilism
predation
mutualism

Question 11

zoogeography

Answer 11

branch of zoology focused on geographic distribution of animals

Question 12

range

Answer 12

abiotic and biotic factors, depends of species tolerance limits

Question 13

habitat

Answer 13

particular environment a species occupies within its geographic range

Question 14

niche

Answer 14

space within organisms habitat where they operate most effectively