Green plants and algae remove carbon dioxide from the atmosphere, and the carbon is used as carbohydrates, fats and proteins. When the green plants and algae respire, some of the carbon is returned back to the atmosphere at carbon dioxide. When green plants and algae are eaten by animals, the carbon becomes fats and proteins in the animals. When animals respire, carbon is returned to the atmosphere in the form of carbon dioxide. When green plants, algae, and animals die, they are broken down by detritus feeders and micro-organisms. When the detritus feeds and the micro-organisms respire, carbon is released into the atmosphere as carbon dioxide. The compounds that have been put back into the soil are then absorbed by plants as nutrients and are put back into the food chain. Combustion of fossil fuels and plant and animal products releases carbon dioxide into the air. It is a constant cycle.
What is the difference between sexual and asexual reproduction? 2/3 marks.
Sexual reproduction involves two parents, fusion of gametes, mixing of chromosomes. asexual is one parent, no fusion of gametes, one pair of chromosomes, no variation
Sexual reproduction involves two parents, fusion of gametes, mixing of chromosomes. asexual is one parent, no fusion of gametes, one pair of chromosomes, no variation
Green plants and algae remove carbon dioxide from the atmosphere, and the carbon is used as carbohydrates, fats and proteins. When the green plants and algae respire, some of the carbon is returned back to the atmosphere at carbon dioxide. When green plants and algae are eaten by animals, the carbon becomes fats and proteins in the animals. When animals respire, carbon is returned to the atmosphere in the form of carbon dioxide. When green plants, algae, and animals die, they are broken down by detritus feeders and micro-organisms. When the detritus feeds and the micro-organisms respire, carbon is released into the atmosphere as carbon dioxide. The compounds that have been put back into the soil are then absorbed by plants as nutrients and are put back into the food chain. Combustion of fossil fuels and plant and animal products releases carbon dioxide into the air. It is a constant cycle.
Perfect, you might want to mention the name of the process for the first stage, it's photosynthesis.
Respiration requires energy Some of the biomass may not have been eaten
The first part is partly right but you'd probably have to expand on it by saying that the energy is used when the animals move. The second point i'm not so sure about but i do know that energy is lost as faeces (waste material)