Where does energy enter most ecosystems? how is it converted to chemical energy and then passed through the ecosystem? how is it lost? remember this: energy cannot be recycled?

Answer;

-Energy enters most ecosystems as sunlight. It is converted to chemical energy by autotrophs through the process of photosynthesis and passed to heterotrophs in the organic compounds of food, and dissipated as heat.

-Energy flowing through the ecosystem is ultimately dissipated into space as heat, so if the sun were not continuously providing energy to Earth, most ecosystems would vanish.

Explanation;

-Ecosystems maintain themselves by cycling energy and nutrients obtained from external sources. Solar energy enters the ecosystem through the process of photosynthesis, which takes place in green plants, algae and bacteria, which are called primary producers.

-Solar energy (an abiotic factor) is converted to chemical energy, when green plants convert carbon dioxide from the air and water from the earth, into glucose. Solar energy enters the ecosystem through the process of photosynthesis, which takes place in green plants, algae and bacteria, which are called primary producers.

-These producers form the first tropic level of the pyramid. The producers obtain 100% of their energy from the sun. The plants are consumed by plant eating animals known as herbivores. Such herbivorous animals are the primary consumers, which form the next trophic level of the pyramid. The primary consumers are able to obtain only 10% of the total solar energy that was initially obtained by the plants.

cell division is not regulated in tumor cells.

answer >   yes we do, women; have three holes, urethral opening(pee hole, vagina, and the women pee/girls pee out of the urethra like the men do; only they have a single opening to pee/ejaculate.   (sorry if i'm too forward with this, but this is for a biology class, isn't it? )

hope that !         : )