How did Lamarck and Darwin differ in their thinking about species?
A. Darwin thought that organisms could induce their own changes, while Lamarck thought that change could only be induced by an organism's environment.
B. Darwin thought that change could occur in individual organisms, while Lamarck thought that change could only occur across generations.
C. Darwin thought that genes controlled a species' ability to survive, while Lamarck thought that genes were only one part of a species' ability to adapt.
D. Darwin thought that organisms had to struggle to survive, while Lamarck thought that organisms could make adjustments when conditions became difficult.
D
1.A
2.D
3.A
4.D
5.D
6.B
7.D
8.D
9.A
10.D
11.B
12.C
13.C
14.B
15. common ancestor
16. punctuated equilibrium
17. adaptation
18. overproduction
19. body
20. artificial selection
21. inheritance
22. homologues structures
23. older
These are the answers for the whole assignment.
http://bio4esobil2009.wordpress.com/2010/04/28/contrasting-lamarck-and-darwin/
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To determine how Lamarck and Darwin differed in their thinking about species, we need to understand their respective theories of evolution. Lamarck was known for his theory of Lamarckism or the inheritance of acquired characteristics, while Darwin is associated with the theory of natural selection.
Lamarck's theory suggests that organisms can induce changes in themselves and pass them on to their offspring. He believed that characteristics acquired during an individual's lifetime, such as changes in behavior or the use or disuse of specific organs, could be inherited by subsequent generations.
On the other hand, Darwin's theory of natural selection emphasizes that changes occur across generations rather than within an individual's lifetime. According to Darwin, individuals with certain variations or traits that are advantageous for survival and reproduction are more likely to pass on their genes to the next generation. Over time, these favorable traits become more prevalent in the population, leading to the evolution of a species.
Given this information, the correct answer is B. Darwin thought that change could occur in individual organisms, while Lamarck thought that change could only occur across generations. Lamarck's theory focused on changes acquired during an organism's lifetime, while Darwin's theory emphasized the variation and selection of traits present in a population over many generations.