Biomass Flashcards
Compost help growth why (1)
More mineralsRetain waterContains nutrientsNeeded by plants for growth
Why so little mass converted (2)
WasteRespirationMovementHeatNot all eatenSweating
Source of energy for plants (1)
Sun
How carbon in dead insect bodies recycled (4)
Plants photo take in Co2Use carbon to make proteinsAnimals eat themAnimals and plants respire releasing CO2They dieBodies consumed by animalsMicroorganisms decompose themMicroorganisms RespireCo2 producedPhotoSugar producedCombustion from burning fossilsProduces Co2
Advantage of keeping fish in net (1)
Easier to catchFeed
Why raise herbivores not carni (2)
Less biomass lostShorter food chainCheaper feed herbivores
2 ways energy released in respiration used by herbivore (2)
Maintain body tempMovement breathing
Carni release more energy than herbi why (1)
More movementHave to hunt
2 carbon compound found in plants (2)
CarbohydrateProteinVitamin
Decay occurs quicker if in container with holes why (2)
Air can enter for aerobic of microHeat let out as it kills micro
Proportion of energy in the food transferred into new tissue greater in insect than mammal why (3)
Insect cold bloodedInsect transfer only …kJ mammal …kJLess respiration so more biomass available for insect growth
Algae in carbon cycle (3)
PhotoRelease CO2Eaten by animalsDecayed by micro
Why not all sunlight absorbed (2)
ReflectedPhoto inefficientLost through respiration
One environmental and other factor affect no of pod
Light/waterGenes
Why gardener incorrect when say get largest mass of peas if grow D (1)
Mass of crop also depends on mass of each pea
