11 Questions
What is the primary reason suggested for the survival of long-necked giraffes?
Their ability to reach food on tall trees when low vegetation is scarce
Which of the following best describes gene flow?
The movement of genes from one population to another due to migration and interbreeding
What is the primary focus of the synthetic theory (neo-Darwinian synthesis)?
The combination of Darwin's theory of evolution and Mendel's principles of genetics
Which of the following is NOT a condition required for the Hardy-Weinberg equilibrium?
Presence of natural selection acting on the population
Which of the following best defines natural selection?
The process by which nature selects organisms based on their existing traits
What is the primary cause of genetic drift?
Random changes in gene frequencies due to chance events
What was the key difference between Lamarck's and Darwin's theories of evolution?
Lamarck believed in the inheritance of acquired characteristics, while Darwin believed in natural selection.
According to Lamarck's Theory of Use and Disuse, what happens to organs that are constantly used?
They will become larger and more developed.
What is the main idea behind Lamarck's Theory of Need?
Organisms change in response to their own needs.
What was the key difference between the giraffes' neck lengths in Lamarck's and Darwin's theories of evolution?
Lamarck believed the giraffes' long necks were acquired through use, while Darwin believed they were the result of natural selection.
What is the meaning of the word "evolve" according to the text?
To change gradually.
Learn about Jean Baptiste de Lamarck, the French naturalist who proposed early evolution theories. Explore his theories on how organisms change over time in response to their environment, including Theory of Need, Theory of Use and Disuse, and Theory of Acquired Characteristics.
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