Answer:
Decomposers are organisms (mostly bacteria and fungi) that break down dead plants and animals, eventually turning them into nutrients that will be added to soil. These nutrients are very important to continue the cycle in the ecosystem. Slugs, earthworms, millipedes, and centipedes also help break down dead things.
Explanation:
A frame shift mutation is a genetic mutation caused by insertions or deletions of nucleotide in a DNA sequence that is not divisible by 3.
Answer:
A mutation
<em>What can cause changes in a DNA sequence?</em>
A mutation is a change in the DNA sequence. There are several different methods by which mutation happens. Of course, chemically produced mutations receive the most media attention. There are a wide range of substances that can cause mutations, usually by attaching to the DNA and causing it to break, requiring an incomplete repair, or by preventing DNA replication, forcing the replication machinery to repeat the DNA poorly.
However, other factors, such as exposure to radiation or light, can also cause DNA mutations. In reality, UV and X ray light are known to cause mutations by changing the DNA's base composition or causing DNA breaks.
Mutations are also spontaneously caused by DNA replication. Although it occurs extremely infrequently, the replication complex does occasionally make mistakes and insert the incorrect DNA base, which leads to a significant amount of mutations over the course of generations.
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Eddie
Answer:
D)The organisms that have the most favorable characteristics survive and reproduce.
Explanation:
For example, if a giraffe has a longer neck than another giraffe just due to its genetics, it will be more likely to survive, then more likely to reproduce. The alleles that cause the long neck will be more frequent in the population, which could cause evolution.