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1. Charles Darwin:
BIOS 100 Chapter 13 Answer published On the Origin of Species b Means of Natural Selec- tion zzzzzhypothesized that present-day species are the descendants of ancient ancestors that they still resemble in some ways. "Descent with modification"- phrase for evolution Proposed Natural Selection
- How did Darwin's The Origin of Species differ from other books that de- scribed the
natural world?:
Answer Darwin proposed a scientific explanation for his ob- servations.
- Darwins phrase for evolution, with , captured the
idea that an ancestral species could diversify into many descendant species by the
accumulation of different to various environments.:
Answer descent; mod- ification; adaptations
4. Natural Selection:
Answer a process in which organisms with certain inherited traits are more likely to survive and reproduce than are individuals with other traits.
5. Population:
Answer a result of natural selection, a group of individuals of the same species living in the same place at the same time, can change over generations
6. Evolutionary Adaptation:
Answer natural selections leads to this. a population's increase in the frequency of traits suited to the environment.
7. Evolution:
Answer Descent with modification; genetic change in a population or species over generations; the heritable changes that have produced Earth's diversity of organisms.
8. Aristotle:
Answer Greek philosopher, whose ideas had an enormous impact on Western culture, general 1 / 2
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held the view that species are fixed, permanent forms that do not evolve.
9. Fossils:
Answer imprints or remains of organisms that lived in the past.
10. Jean-Baptiste de Lamarck:
Answer explained evolution as the refinement of traits that equip organisms to perform successfully in their environments. He proposed that by using or not using its body parts, an individual may develop certain traits that it passes on to its offspring. Although his theory was wrong it help Darwin set the stage.
- Darwin's phase for evoluton, with , captured the
idea that an ancestral species could diversify into many descendant species by the accumulation
of different to various environments.:
Answer descent; modification; adaptations
12. 5 lines of evidence in supporting evolution:
Answer fossils biogeography comparative anatomy comparative embryology molecular biology
13. Why are older fossils generally in deeper rock layer than younger fossils?:
Answer sedimentation places younger rock layers on top of older ones.
14. Fossil Record:
Answer ordered sequence of fossils as they appear in the rock layers, marking the passage of geologic time.
15. the oldest known fossils:
Answer 3.5 billion years ago they are prokaryotes
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