[问答题]
1.Describe the process by which detrize)ua.xc5 om ,hw fbb 3bdzgcqp 4c69t)t29 l4tivores and saprotrophs obtain nutrition.
2.Describe how a quadrat can be used to estimate the population of poppies in a field.
3.Energy and nutrients move through ecosystems differently. Describe how energy and nutrients move through terrestrial ecosystems.
