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 the phenomenon known as "red tide"? Which ambiental harms can it cause? Red tide is a phenomenon that happens when dinoflagellates (algae from the pyrrophyte group) pro
Define Briefly about the Nutrition security? Nutrition security can be briefly defined as a balance between biological requirements in energy and nutrients and the quantity and
What are analogies for a nucleolus? If the nucleolus is the president of a factory then the nucleolus is the manager
It is IgE mediated hypersensitivity. Typical manifestations contain asthma, food allergies, eczema, hay fever etc.
Ask question importance of genetics in human life #Minimum 100 words accepted#
Define Limitations for Standard or Total Plate Counts Method? This method has certain limitations - 1. Microbial count depends on the type of media, incubation temperature,
What is Surviving Implants It is a term described by Albrektsson that applies to implants that are still in function but have not been tested against success criteria. Such as
Describe Systolic Sounds in heart dieases? Early Systolic Sounds: Aortic or pulmonary ejection sounds are the most common early systolic sounds. These are high frequency soun
Fredrick Griffith published a series of experiments that collectively were dubbed "The Transforming Principle" in 1928. Which of the following stopped him from being able to declar
Are protozoan''s diploblastic or triploblastic
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