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Questions and Answers
What did Jan Swammerdam's Preformation Theory propose?
What did Jan Swammerdam's Preformation Theory propose?
- Ova contain adult organisms in miniature form (correct)
- Eggs provide nourishment for the developing embryo
- The act of fertilization causes genetic mutations
- Sperm cells contain adult organisms in miniature form
According to Caspar Friedrich Wolff, where did he conclude the preformed embryo is not found?
According to Caspar Friedrich Wolff, where did he conclude the preformed embryo is not found?
- In the developing embryo
- In the egg or sperm (correct)
- In the adult organism
- In the external environment
How did Caspar Friedrich Wolff's observations impact the preformation theory?
How did Caspar Friedrich Wolff's observations impact the preformation theory?
- He disproved the existence of preformed embryos in eggs and sperm (correct)
- He confirmed that the miniature embryo exists in the egg and sperm
- He discovered the process of fertilization
- He proposed the Preformation Theory
What did Jean-Baptiste Lamarck propose as a mechanism for evolution?
What did Jean-Baptiste Lamarck propose as a mechanism for evolution?
How did Charles Darwin explain the origin of new species?
How did Charles Darwin explain the origin of new species?
Which scientist proposed the theory of Epigenesis to replace the Preformation Theory?
Which scientist proposed the theory of Epigenesis to replace the Preformation Theory?
What remains unanswered despite the well-documented theory of the Biochemical Origin of Life by Oparin and Haldane?
What remains unanswered despite the well-documented theory of the Biochemical Origin of Life by Oparin and Haldane?
Why is sexuality so widespread in nature based on the text?
Why is sexuality so widespread in nature based on the text?
What is one of the major unsolved problems of evolution related to sexuality according to the text?
What is one of the major unsolved problems of evolution related to sexuality according to the text?
What is a major challenge in tracing the relationships between existing phyla and past phyla?
What is a major challenge in tracing the relationships between existing phyla and past phyla?
Why does disagreement exist about present-day phyla?
Why does disagreement exist about present-day phyla?
What is one of the reasons cited for mass extinction events according to the text?
What is one of the reasons cited for mass extinction events according to the text?
What theory did Darwin propose to explain how characteristics are transmitted from parents to offspring?
What theory did Darwin propose to explain how characteristics are transmitted from parents to offspring?
In Darwin's Theory of Natural Selection, what is the main driving force behind evolution?
In Darwin's Theory of Natural Selection, what is the main driving force behind evolution?
Which theory did Darwin propose to explain the variations in species that were not adequately explained by natural selection?
Which theory did Darwin propose to explain the variations in species that were not adequately explained by natural selection?
What did Darwin believe was a common feature in mating competitions among males?
What did Darwin believe was a common feature in mating competitions among males?
According to the Pangenesis theory, where do the gemmules or pangene accumulate in the body?
According to the Pangenesis theory, where do the gemmules or pangene accumulate in the body?
What did Darwin propose as the mechanism through which characteristics from all parts of the body are transmitted to offspring?
What did Darwin propose as the mechanism through which characteristics from all parts of the body are transmitted to offspring?
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