ecological balance

Question 1

ecological balance

Answer 1

state of dynamic equilibrium within a community of organisms

Question 2

foodchain

Answer 2

series of organisms through which the food nutrients travel from producers to consumers to decomposers

Question 3

food/trophic level

Answer 3

steps in the foodchain

Question 4

energy pyramid

Answer 4

flow of energy through a trophic structure

Question 5

flow of enery

Answer 5

energy leaves in the form of heat

Question 6

energy input

Answer 6

photosynthesis: light energy to chemical energy
chemosynthesis: chemical of inorganic molecules to chemical energy of food molecules

Question 7

flow of materials

Answer 7

respiration: co2 and ho2 are released to enviroment
decomposition: materials bodies of dead organisms are returned by decomposers

Question 8

flow of cycle

Answer 8

oxygen cycle, water cycle, nitrogen cycle, etc…

Question 9

dynamic equilibrium

Answer 9

state of balance. ecosystem maintains stable condition over time

Question 10

effects of human activities on ecological balance

Answer 10

• deforestation:
  kaingin farming, indiscriminate logging
• wildlife depletion:
  habitat loss
• destruction of coastal resources:
  coral reefs & mangroves
• eutrophication:
  fish kill, concentration of organic nutrients gradually increases
• acid precipitation