What key concept did Oparin and Haldane introduce in their theory of the biochemical origin of life?

According to Lamarckism, what leads to the development of new needs in organisms?

What significance of vestigial organs did Lamarckism provide?

6.

Which scientist independently developed a similar theory of evolution by natural selectionaround the same time as Charles Darwin?

What mechanism did Charles Darwin propose as the driving force behind evolution?

What does Neo-Darwinism primarily focus on?

What is the significance of the postulate "variation exists within populations" in naturalselection?

Which of the following is NOT considered evidence for evolution?

How do homologous structures support the theory of evolution?

What does the study of comparative embryology reveal about evolutionary relationships?

Which geological principle states that in an undisturbed sequence of sedimentary rock layers,the oldest rocks are at the bottom?

If a fossil contains 12.5% of its original carbon-14, approximately how many half-lives havepassed since the organism died?

If a fossil is found to have a carbon-14 to carbon-12 ratio that is 1/4 of that found in livingorganisms, and the half-life of carbon-14 is 5730 years, approximately how old is the fossil?

Which of the following types of natural selection involves the selection of individuals at oneextreme of a trait distribution?

In stabilizing selection, what happens to the range of phenotypic variation in a population?

In which type of natural selection do extreme phenotypes have a selective advantage, leading tothe divergence of a population into two distinct phenotypic groups?

20.