Answer:
there are not 7 steps of primary succesion and they only have 4 steps.
Explanation:
The complete process of a primary autotrophic ecological succession involves the following sequential steps, which follow one another:
Nudation:
Invasion:
Competition and reaction:
Stabilization or climax:
The mass number of an element is the sum of the protons and neutrons. The number of neutrons for a given element is the only number that can change and still have the identity of the element stay the same, (because the atomic number is the number of protons). In this case the mass number would be 11
Telomeres are the tiny areas at the tip of chromosomes that grow shorter each time a cell divides and eventually disappear ending cell replication. Telomeres functions to protect the ends of chromosomes from sticking to each other. Additionally they protect genetic information during cell division because a short piece of each chromosome is lost every time DNA is replicated.
Landfill waste results in air pollution as A) garbage decomposes and releases methane. When "biodegradable" products such as food or paper waste begin to decompose they release methane into the atmosphere which is a pollutant and also a major greenhouse gas. This is an unintended side affect of using certain products that are believed to be environmentally friendly.