Nobody downloaded yet

Evolution - Lab Report Example

Comments (0) Cite this document
It represents a critical analysis of experiments on the effects of certain variables on finches living on these two islands. The central focus of these experiments was to hypothesize that…
Download full paperFile format: .doc, available for editing
GRAB THE BEST PAPER96% of users find it useful
Evolution Lab
Read TextPreview

Extract of sample

Download file to see previous pages The major tool used in this biological experiment was a specially programmed computer application (automated) that enables adjustment of variables from default figures and when run, accurate results on the changes that has occurred in the biological structures of living organisms were shown. These results are therefore used to justify the hypothesis.
In the first experiment, when the independent variable (precipitation) is adjusted to higher levels, the birds evolve smaller beaks. This is because when precipitation is high then the seeds become softer and the birds slowly adjust to the changes of nature until the fully adapt. On the other hand when precipitation is low, the seeds become harder and the need for additional force to crack the seeds arise and based similar principle; the birds evolve stronger and larger beaks over time (Sober, 2008). This adjustment may not favor some birds as the adaptation and evolution process is gradual and therefore may lead to death of individuals that are unable to adjust effectively to the changes of nature.
Natural selection can influence variation of a trait in a population in three major forms namely; diversifying, directional and stabilizing forms (Sober, 2008). In the second experiment, it is clearly evident that changes in the environmental conditions favors the individuals with specific phenotypes. When important parameters that influence natural selection such as precipitation is manipulated (adjusted to 50cm/year and 0cm/year on Wallace Island and Darwin Island respectively), it is noted with great significance that only a few individuals are able to survive and continue reproducing in an environment with low precipitation. This is because of the variation in biological and environmental factors that are very significant for natural selection. Therefore for a period of 300 years, these changes will influence the evolution of Finch beaks and in turn affect their population. This fact can be justified by the graphs ...Download file to see next pagesRead More
Cite this document
  • APA
  • MLA
(“Evolution Lab Report Example | Topics and Well Written Essays - 500 words”, n.d.)
Retrieved from https://studentshare.org/biology/1657394-evolution-lab
(Evolution Lab Report Example | Topics and Well Written Essays - 500 Words)
“Evolution Lab Report Example | Topics and Well Written Essays - 500 Words”, n.d. https://studentshare.org/biology/1657394-evolution-lab.
  • Cited: 0 times
Comments (0)
Click to create a comment or rate a document
Lab Report
1. E. coli is in competition with S. euglensis at a temperature of 20-35 degrees and a pH of 6-7.5. E. coli is also in competition with N. atol at a temperature of 20-30 degrees and a pH of 4.5 -6.5. P.
1 Pages(250 words)Lab Report
Kinetics Lab
3. Add 1 ml of starch indicator and 0.05 ml of 0.1 M EDTA solution from the Chemical Shelf to the same 250 ml beaker. This drop of EDTA solution is to minimize the effects of trace quantities of metal ion impurities that would cause spurious effects on the reaction.
5 Pages(1250 words)Lab Report
Lab Report
Since 19th century scientists were aware of some unique identity of an individual which distinguish from others, like finger prints. In 1970, DNA was established as key element in human life and which makes individual as unique creature. Variability in DNA sequences among individual to individual have attracted forensic experts to develop technique based on DNA to identify individual or criminal similar to finger prints.
9 Pages(2250 words)Lab Report
DNA Barcoding Invertebrate Lab Report #1
The first stage is to obtain a specimen which may be from from tissue or culture collections. In the second stage, laboratory analysis which involves extraction of genetic material to obtain DNA batcode sequence is done. These sequences are later
2 Pages(500 words)Lab Report
Density Lab
ich falls within the theoretical range of 0.35 – 0.67 depending on the class of pine (which in this case is near the value of kind radiata at 0.48). Similarly, the experimental density of oak which is 0.75 g/ml is well within 0.6 – 0.9 and closest to the true values 0.74,
1 Pages(250 words)Lab Report
Lab report
o calibrate the pressure transducer and then perform an uncertainty analysis and compare your pressure transducer calibration to the manufacturer’s calibration. 1. Excite the pressure transducer, with a voltage of 10v. The figure above had J17 and J18 as AO (Analog Out). It
5 Pages(1250 words)Lab Report
Lab Discussion
In which case, the slope of the position time graph was compared against the average velocity obtained from the velocity time graph. From the results attached, the slopes found in the position versus time graphs are reasonably close to the average velocities with
1 Pages(250 words)Lab Report
Post-Lab Report Variation and selection in a population of wood lice -rollie pollie
Likewise, it can be hypothesized that there are variations in several traits of wood lice (common terrestrial crustacean), in terms of mass, length, plates, and sprint speed that makes some to survive predation than others. With a view to
5 Pages(1250 words)Lab Report
LAB one
The lab simply entails fetching a web URL from a web server to my computer, which is basically, acting as the client. This is then followed by starting up wireshark and beginning a
1 Pages(250 words)Lab Report
Materials lab
When the material is pulled, one would be able to establish the strength of the material. In this regard, tensile testing can help one to develop an insight into various substances. Whenever one continues to pull on a material, the material will break hence one would get a recommendable profile of tensile.
3 Pages(750 words)Lab Report
sponsored ads
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.
Let us find you another Lab Report on topic Evolution Lab for FREE!
logo footer
Contact us:
Contact Us Now
FREE Mobile Apps:
  • StudentShare App Store
  • StudentShare Google play
  • About StudentShare
  • Testimonials
  • FAQ
  • Blog
  • Free Essays
  • New Essays
  • Essays
  • Miscellaneous
  • The Newest Essay Topics
  • Index samples by all dates
Join us:
Contact Us