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.
Is this C, Ms.Sue?
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.
Jean-Baptiste Lamarck's thought that animals and plants adapted to their changing surroundings in their lifetime and then passed on these changes to their offspring. The classic example that he cited was a giraffe- he said that a giraffe's neck got longer as it stretched for leaves higher up on trees. This made its neck and bit longer, so its offspring had necks a bit longer too. Darwin’s theory of evolution is basically 'Survival of the Fittest" or "Natural selection." Genetic mutations occur in every species.
This is just some stuff I found in my textbook, hope it helps a little...
Thank you, it helps a lot. But, I am still very confused as to whether the answer is C or D.
I think its D
I don't know if the guy above me is right, but there are 25 questions to the exam. The last two you have to do yourself. Keep it up, bois. It's almost over.
Alright, I just took the exam and iAgs is 100% right in 2020. I got 100% on the multiple choice, the rest I have to wait and see.
TYSM!!!
No, the correct answer is B. Darwin thought that change could occur in individual organisms, while Lamarck thought that change could only occur across generations.
To find the answer, we can examine the key differences between Lamarck and Darwin's theories of evolution:
1. Inheritance of acquired characteristics: Lamarck believed that an organism could pass on traits acquired during its lifetime to its offspring. For example, a giraffe that continuously stretches its neck to reach higher leaves would pass on longer necks to its offspring. In contrast, Darwin rejected this idea, proposing that changes occur through natural selection acting on inherited variations already present within a population.
2. Mechanism of change: Lamarck believed that the environment directly influenced the development of organisms, causing them to change. In contrast, Darwin proposed that changes occurred through random variations and mutations, and individuals with advantageous variations were more likely to survive and reproduce, leading to the accumulation of these beneficial traits in a population over generations.
3. Time scale: Lamarck's theory focused on relatively rapid and direct changes occurring within an individual's lifetime. Darwin's theory, on the other hand, emphasized slow and gradual changes occurring over long periods of time across generations.
Therefore, the correct answer is B: Darwin thought that change could occur in individual organisms, while Lamarck thought that change could only occur across generations.