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Whales and hippos share many genetic similarities compared to other mammals. What does this most strongly indicate about their relationship?
They descended from a recent common ancestor
Which piece of evidence would best help scientists determine whether a trait reflects common ancestry rather than convergent evolution?
DNA sequence similarities
Two species have similar bone structures but very
different DNA sequences. This suggests that their similarity is likely due to?
Analogy
What do you call the diagram that shows evolutionary relationships based on shared traits?
Phylogenetic tree
Which naturalist proposed one of the earliest formal theories suggesting species change over time?
Jean-Baptiste Lamarck
Cite all evidences of evolution discussed.
Fossil record, Comparative Anatomy, Comparative Embryology, Molecular Biology, Biogeography
How do reproductive isolation mechanisms contribute to biodiversity?
By allowing populations to diverge into distinct species
Two frog species mate and produce embryos, but the embryos fail to develop and die early. This postzygotic barrier is called?
Hybrid inviability
When chromosomes exchange segments during meiosis, what mechanism of evolution does it suggest?
Recombination
. A flood drastically reduces the size of a small island population, changing allele frequencies. This situation BEST illustrates what mechanism of evolution?
Genetic drift
Which Paleozoic period is most closely associated with the rapid diversification of animal life?
Cambrian
In what era do reptiles replaced amphibians as dominant vertebrates?
Mesozoic era
In the Miller–Urey experiment, what did Flask B represent?
Primitive Atmosphere
Why is land considered an unlikely place for the origin of life?
Because of strong UV rays and lack of oxygen
Bt cotton contains a gene from Bacillus thuringiensis. What trait does this give the cotton?
Pest resistance
If you want to design a transgenic crop that is drought-resistant and nutritious, what genetic engineering process approach would you combine?
Transformation + gene cloning + backcross breeding
