What was August Weissman's contribution to our understanding of evolution? disproved Larmarck's theory by cutting the tails off of mice hypothesized that observable changes to organisms was gradual suggested that evolution is the result of catastrophic events proved that evolution existed
Added by Nathan W.
Close
Step 1
His most important contribution was disproving Lamarckism. Show more…
Show all steps
Your feedback will help us improve your experience
Hunza Gilgit and 61 other Biology educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
The theory of use and disuse of organs was given by (a) Lamarck (b) Darwin (c) Weissmann (d) Hugo de Vries
How did Darwin disprove Lamarck? Explain why Darwin still thought that Lamarck's idea was very important.
Sri K.
The main difference between Darwin's theory of evolution and Lamarck's theory of evolution is that Lamarck's was proposed before people were ready to believe in evolution. Darwin did not incorporate the notion of God into his theory. Lamarck did not incorporate the notion of God into his theory. Lamarck did not believe that individuals varied. Darwin believed change occurred from one generation to the next while Lamarck believed change occurred during individuals' lifetimes. The problem with Lamarck's proposal of the inheritance of acquired characteristics was that the Earth was very old. The Earth was not very old. Individuals do not acquire characteristics during their lifetimes. Nobody read his works. Evolution had already been proposed. The reason described in the lectures for why elephants do not have wings is based upon the constraint of small population sizes. Disequilibrium. Physics and chemistry. Correlated characters. Natural selection not being able to look ahead. What eventually prompted Charles Darwin to publish his theory of natural selection? His wife finally made peace with the proposal. His father passed away. He completed further research into the forces of evolution. Someone else developed the same theory. He became financially secure. Someone studying the remains of an Egyptian city from 2,000 B.C. would probably be working from the perspective of archaeology. Cultural Anthropology. Physical Anthropology. Linguistic Anthropology. Ethnology. Suppose that the drought observed on Daphne Major affected other islands in the Galapagos chain as well. Imagine that tortoises on a nearby island spend more time in the water when food becomes scarce. Smaller individuals are more likely to die in the water since they do not have as much strength to combat the swirling currents. What would you expect size of the tortoises be many generations after the drought conditions went away? Size would stay large since a drought could occur in the future. Size would stay large since variation for small individuals would be all used up. Size would stay large since bigger is always better. Size would return to pre-drought conditions since there are costs to having a large body size. Size would return to pre-drought conditions since natural selection often has an ideal in mind which is very difficult to change unless the environment undergoes a radical shift. Who argued that God was responsible for the design of organisms? Erasmus Darwin. Charles Lyell. William Paley. Thomas Malthus. Jean-Baptiste Lamarck. As described in the lectures, prairie dogs have few predators. Live in populations that are not subject to natural selection. Who are more aware of predators may have an evolutionary advantage. Can grow quite large, sometimes up to 30 pounds. Often attack people playing golf. What happened to beak size of the ground finches on the Galapagos during the drought conditions? Beak size increased. Beak size decreased. Beak size remained the same since the environment did not change. Beak size remained the same since all birds could eat the large seeds. None of the above. An important implication of Darwin's third postulate (about inheritance) as described in lectures and the textbook is that parents with successful variations pass them on to offspring. Successful variations become more numerous in successive generations. Offspring see how their parents have adapted to the environment and copy them. All of the above. (b) and (c) above.
Adi S.
Recommended Textbooks
Biology for AP Courses
Objective Biology for NEET
Introduction to General, Organic and Biochemistry
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD