Plants and animals live in interacting, interwined communities. There is a characteristic set of species in different environments. For example, certain species of trees, shrubs, ground cover, arthropods, reptiles, mammals, birds etc. live in a temperate forest environment. A completely different set of creatures live in a marsh, or a grassland or an agroecosystem. However, the relationships between these groups can be defined by the ecological role they play, the flow of energy between them and the cycling of nutrients between them. This is a fancy way of saying "everything is connected"! And if you change one part of the system, something else changes. In an ecosystem management decision, you hope you know what those consequences of your actions are!) This is important in managing agroecosystems as well.
Answer carbon dioxide
Hope this helps
Its "prophase" because "nuclear envelope fragments and the microtubules have to attach to the chromosomes", so in short its the longest stage because everything is <span>decondensing, splitting apart, and the nucleus is disintegrating, also chromosomes are getting ready to be duped. </span>
It's a pic of 4 ..genetic engineering.. as the selected part of a specific DNA is used for some research !
