Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Explain the Lamarck's Theory in evolution?
Prior to Darwin, most people believed in and held to the creationist viewpoint that species were created in their current forms, which have not changed. In 1809, Jean Baptiste Lamarck proposed a new theory of evolution. He used the fossil record to explain how different adaptations arose.
Lamarck's theory incorporated the following ideas. He thought that organisms had an "inner need" to become better adapted to their environments. This, he thought, would explain the trend that organisms had toward greater and greater complexity observed in the fossil record. Secondly, Lamarck, along with others, felt that organisms are able to gradually lose characteristics that were not used over time, and further, that they could develop those characteristics that were "needed" to aid in their survival. Lastly, Lamarck thought that these newly acquired characteristics, or traits, could be passed on to future generations - this came to be known as the inheritance of acquired traits.
Today, of course, we know that there is no evidence that supports Lamarck's theory. Increasing muscle mass and strength by exercise does not alter the gene that carries that trait. This means that a runner who trains and develops running prowess is not able to pass on acquired increased muscle mass and strength to his or her offspring. Although Lamarck's Theory was ultimately replaced, Lamarck is still credited with formulating a plausible theory that was accepted by many.
What is a graduated cylinder and how is it used? A graduated cylinder is a piece of laboratory glassware used to accurately calculate out volumes of chemicals for use in reacti
Unprecedental clarity has come to our understanding of genetic differences by the analysis of DNA sequences. It is not surprising in which the latest DNA technologies are leading t
how can i get an demo assignment to solve?
Ethylene production - Responses to Infection Ethylene is also induced in response to infection. It is also known to be produced under other stress conditions like wounding
Mutations are the only kind of variability generating mechanism in prokaryotes and asexually reproducing organisms. But in eukaryotes where sexual recombination occurs, even in one
Which of the following is true of energy? a. It can be transferred from one form to another with 100 percent efficiency. b. It can be created from nothing. c. It can be stored i
Which of the following are bound to hemoglobin when hemoglobin is in the R-state? Choose all that apply. 1. Fe2+ 2. CO2 3. 2,3-bisphosphoglycerate 4. Fe3+ 5. Oxygen
Pyruvate carboxylation Pyruvate carboxylation : In this reaction, pyruvate, CO, and ATP are converted to oxaloacetate, ADP and Pi catalysed by the enzymepyruvate carboxylase
Q. Treatment of angina pectoris? Proper and careful treatment of the underlying cause (usually dyslipidemia, advanced atherosclerosis or sever chronic hypertension) is imperati
Q. What are the main prophylactic measures against schistosomiasis? The major measures to prevent schistosomiasis are information for infected individuals to look for treatment
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd