it tells you in the question that the maximum age is something like 95.... so you find the percentage of the age at the specific amount... i think its 85% right??? but then you take 85% of 95 or whatever the maximum age is and it gets you the answer.
Energy is transferred through an ecosystem. Describe how and explain why the efficiency of energy transfer is different at different stages in the transfer. (6 marks)
Energy is transferred through an ecosystem. Describe how and explain why the efficiency of energy transfer is different at different stages in the transfer. (6 marks)
When light hits the producer (plant) not all of it is absorbed by the plant as some of it is lost as heat, or is reflected or even it may not be the right wavelength. When the energy is transferred through different stages of the trophic levels, the energy efficiency decreases, as some of it is lost during respiration or in the faeces- as some parts of an organism is not digestible e.g. cellulose. Alternatively some organisms use the energy for growth and repair. Urmm what else is there ?? Thats not enough for 6 marks is it? How many would i get?