Ecology 2

What is an example of plant in layer Y of terrestrial ecosystem?

• Tualang tress

• Petai plants

• Palm tree

• Fern

What is an example of animal in emergent layer in terrestrial ecosystem?

• Eagle

• Bird

• Small bird

• Reptile

What is an advantage by using pyramid number?

• Easy to count the number of organisms

• Gives a better indication the mass of organisms and the flow of energy through different trophic levels

• Displays the total quantity of energy flow

• The productivity of producers in a given area and the energy utilized by consumers can be calculated

What is an example of inverted pyramid number and biomass?

• Lake ecosystem

• Terrestrial ecosystem

• Marine ecosystem

What is GPP?

• Total amount of light energy that is converted to chemical energy inorganic materials during photosynthesis per unit time

• The rate at which energy is used to make new consumer tissue

• Percentage of energy stored in assimilated food that is not used for respiration

NPP is equal

• GPP minus excretion

• GPP minus photosynthesis

• GPP minus respiration

What is the process involve in net secondary production

I Growth

II Reproduction

III  Respiration

• I and II

• II and III

• I and III

Calculate production efficiency of caterpillar?

•   

  33 %

• 67 %

• 34%

• 100%