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Suppose if we hire the biological species concept(where a population or group of populations within which genes are actually or potentially exchanged by interbreeding, and which are reproductively isolated from other such groups) when did species first exist? What were organisms before then if not species? What might the consequences of the emergence of species be for processes of adaptation and diversification?
Give examples of potential environmental impact. Give at least two references in addition to your text in support of your position. Be sure to cite your sources including your text using APA style and respond to at least two of your classmates' posti..
Reactive oxygen species are unstable, or reactive, compounds that result from partial reduction of oxygen. Reactive oxygen species can cause damage to molecules, including membrane lipids and nucleic acids.
There is a general agreement that life should have evolved in the oceans originally and only much later invaded land. What factors of the physical environment on the early and evolving Earth support these ideas? Changes in which of these factors were..
Assume you have discovered that a single protein in two different cell lines is significantly overexpressed in one of them.
The Assignment is Due on tonight at 11:59 pm so the sooner the better. I know its long Design an experiment in which you will test the effect of an acidic fluid on enzymatic activity.
What are the major adaptations of amphibians, birds, reptiles and mammals? What are the dissimilar types of animals in these groups? Anmiotic egg,plastron, carapace, snake, lizard, turtle, feathers How did jaws evolve.
If a single rod-like (cylinder) E. coli was 2um long and 0.8um in diameter, and had a density of 1.1 x 10^3, what would be the mass of a single cell?
Diversity in tropical regions is generally greater than at high latitudes. Explain two different hypotheses that propose the mechanism for this pattern that remains a biological mystery
They isolated bacterium in a pure culture and demonstrated that experimental healthy animals injected with this culture became sick. What other test do researchers require to perform to be absolutely sure that the bacterium is responsible for the dis..
Describe how the cell derives additional energy by switching . What was the key factor that determined this change.
Assume you are trying to create a rose bush that has deep red roses and small thorns. Rose color is determined through the R gene.
Describe why asexually reproducing organisms are generally found in environments that do not change very much through time, while sexually reproducing organisms are very successful in environments.
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