You have an ecosystem with the following organisms: birds, fruit trees, tigers, and monkeys. which list would best describe the food chain?

The answer is fruit trees, birds/monkeys, tigers. Producers are the first level of the food chain. Plants are producers because they produce their own food. So, fruit trees will be at the beginning of the food chain. The next level belongs to the primary consumers. Primary consumers are animals that feed on producers. Both birds and monkeys feed on fruit trees, so they are the next in line after fruit trees. Finally, secondary consumers eat primary consumers, such as birds and monkey. Tigers are secondary consumers, and thus they are last on the food chain list.

The proton has a positive charge while the neutron has no charge they both make up the nucleus of the atom while the elections have a negative charge and surround the nucleus of the atom. the protons and electrons are used to calculate the atom's mass whereas the neutrons don't affect the mass