Changes gradually because each species responds differently to changes in environmental factors.
Primary succession is when there is a brand new area formed where no life has previously been. When new land is created by lava froma volcanic erruption, it is barren. So, in your example, the order of events would be: 1, 2, 4, 3. However, the first stage in succession is generally considered when the first life takes hold, for example, when you see the first pioneer species like a lichen. Therefore, I'm not sure what the writer of the question is looking for because I don't really see a correct answer. While #1 is the first thing to occur, it's not really the beginning of succession until life shows up. #3 mentions life decomposing, but life hasn't begun yet in 1, 2, or 4.
The generation of carbon dioxide and the composition of enzymes.
They were generally supposed to eat rotten food off the ground but now they eat our food in our houses. ****************************** As for the ultimate origin of flies (of whatever species) we always have our choice of origins. We can say that God created them for reasons of His own, or we can say that they evolved to fill various ecological niches.
Sabouraud Agar is used as a selective media to isolate yeasts and molds. generally, use a complex kind of media, involving plant or animal extracts.
CBC test importance its basic test ,blood composition ,complications in the shape of cells,and esr ,this test show other assessment of diseases
"Succession is a process of ecological change in which a series of natural communities are established and then replaced over time. Ecologists (scientists who study the relationships of organisms with their living and nonliving environment) generally recognize two kinds of succession, primary succession and secondary succession. Primary succession takes place on an area that is originally completely empty of life. As an example, an area that has been covered by a flow of lava has, for a time, no life at all on it. Over a period of time, however, various kinds of organisms begin to grow in the area. Over time, the variety of life-forms changes as succession continues."
Secondary succession follows tornadoes, if there is any succession. Tornadoes can bring down many trees and damage vegetation, but they generally leave the soil intact.
Observation is generally the very first step in asking ecological questions. Observations may be the first step in designing experiments and models.
The kings were not chosen. The succession was generally hereditary with the occasional usurper.
A tornado results in secondary succession. The plants on the surface are destroyed, but buried seeds generally stay in place and the soil remains mostly intact.
During secondary succession, the topsoil generally undergoes an increase in carbon stock, nitrogen supply, an increase in the carbon/nitrogen ration and a decrease in acidity and density.
MATCH (Multilevel Approach to Community Health) is an ecological planning perspective that recognizes that intervention approaches can and should be aimed at a variety of objectives and individuals. (B. Simons-Morton, personal communication, October 10, 1999) Generally it is one of the main models for program planning in health promotion. There are 5 phases in this model.
a mustard seeds ecoogical niche is generally found in bumholes and up vaginas
Covalent bonding is formed generally between nonmetals.
A verse is generally considered to be a single line in a metrical composition, e.g. poetry
Generally a composition, or a number of other titles such as a Symphony.
Generally secondary succession will take place. Since even though much of the vegetation may be destroyed the soil and some buried seeds mostly remain in place.