Thursday, November 6, 2014

Plan B

                                                                                    Dan Webber

1. Ecosystem Diversity - the variety of different types of ecosystems
Species Diversity- The variety of different types of species within an ecosystem
Genetic Diversity- the variety of genes within a given species
*Genes form the blueprint of an organism's traits.  The diversity of traits ultimately helps determine the species diversity and ecosystem diversity on Earth.

2. Humans benefit from diversity from agricultural and medicinal. Organisms benefit from stability and genetic reserves.

3. Scientists organize species into categories that indicate how related they are to one another, these branching patterns are called phylogenies. The number of species on Earth range between 5 million and 100 million.  Most agree to an estimate around 10 million.

4. Because there are so many different types of climates and ecosystems

5.  To show the relationship among organisms and they also show patterns of evolution.  

6.  A gene is a physical location on the chromosomes within each cell of an organism and a genotype is the complete set of genes in an individual. 

7.  A random change in the genetic code produced by a mistake in the copying process or environmental factories such as UV exposure can also mutations.

8.  If it brings new combination of  genes that can produce novel traits, this can cause a mutation.

9.  Genotype is the complete set of genes of an individual changes in genotype due to the mutation or recombination can produce changes in an individual's phenotype.  Phenotypes are the actual set of traits expressed in that individual.  An individual's phenotype can be influenced by both the genotype and the environmental factors.

10.  A change in the genetic composition of a population over time as a result of the environment determining which individuals are most likely to survive and reproduce.  Some examples are dogs and agriculture .

11.  Not all offspring can survive 
Individuals differ in their traits
Individuals produce an excess of offspring
Differences in traits are associated with differences in the ability to survive and reproduce.
Differences in traits can be passed on from parents to offspring.

12.  Mutation - is a permanent change of the nucleotide sequence of the genome of an organism, virus, or extrachromosomal genetic element.
Genetic Drift - is the change in the frequency of a gene variant (allele) in a population due to random sampling
Bottle Neck Effect - is a sharp reduction in the size of a population due to environmental events (such as earthquakes, floods, fires, or droughts) or human activities (such as genocide).
Founder effect - is the loss of genetic variation that occurs when a new population is established by a very small number of individuals from a larger population.

13.  Snapping shrimp off the Isthmus of Panama 

14.  Rate means that the species needs to evolve fast enough to survive.
15. Because it is used to being in a chronic lineage in its lifetime.  Racoon and Kola bear.

There are so many different kinds of plants and animals because they can change over time.

Evolution is when animals and plants change over time.

Something has evolved when it changes over time by adapting to its environment.

Yes anything can evolve however, it takes a period of hundred of years to evolve. 

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