15. (5 points) Which of the following is true of ecosystem energy pyramids (auto
ID: 302719 • Letter: 1
Question
15. (5 points) Which of the following is true of ecosystem energy pyramids (autotrophs/producers on the bottom, i.e, the lowest level) (one and only one correct); The amount of energy flowing through each tropic level is constant; The ratio of energy flowing through a trophic level to that of the next lowest level is constant; The ratio of energy flowing through a trophic level is always 10-20% of the amount flowing through the next lowest level; The amount of energy flowing through each tropic level is greater than the amount flowing through the next lower level; The amount of energy flowing through each tropic level is less than the amount flowing through the next lower level; a. b. C. d. e. 16.(5 points) Which of the following is true of ecosystem biomass pyramids (one and only one comect a. b. c. d. The biomass of each level is the same; The biomass of each level is lower than the biomass of the next lower level; The biomass of each level is greater than the biomass of the next lower level; The biomass of each level may be greater, equal or less than that of the next lower level, depending on the growth dynamics of each level; The biomass of each level is 10-20% that of the next lower level. e.Explanation / Answer
Q15:-
answer is option C
explanation-
The Ten percent law of transfer of energy from one trophic level to the next was introduced by Raymond Lindeman (1942). According to this law, during the transfer of energy from organic food from one trophic level to the next, only about ten percent of the energy from organic matter is stored as flesh. The remaining is lost during transfer, broken down in respiration, or lost to incomplete digestion by higher trophic level.
Q16:-
ans is option c
Explanation
As we go from lower levels to higher levels i. from producers to top consumers,the pyramid of biomass decreases at each level.
The measurements used in measuring the energy in the Pyramid of Biomass are in calories per square meter. This can also be done using the grams per square meter. The pyramid shows the energy production in every productive level. It has also been used in showing the energy flow via every level accurately. This is the aspect that gives it the name ‘The energy pyramid’.
The Pyramid of Biomass has four basic levels, namely:
1.) Primary producers
2.) Primary consumers
3.) Secondary consumers
4.) Tertiary consumers
The biomass in the Pyramid of Biomass decreases progressively from the lower levels heading to the higher ones. When used in the aquatic animals, the inversion is dependent on the reproductively as well as the longevity. Care has therefore to be taken when choosing the right method when preparing a biomass.
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