Identify the four types of evidence that Darwin used to support his concept of evolution?

Answer 1

== == Darwin specifically used his findings on the finch population of the different islands of the Galapagos Islands to display his theory of evolution. As the islands grew farther apart (or so Darwin states), the different species of finch that were stuck on each island developed beaks with different shapes for hunting different types of prey, leaving us with today's Galapagos finches with thick, stout beaks for catching bugs, thin, needle-like beaks for digging in bark, etc, etc. == == Animals that had and hadn't changed. The ones that had changed were healthier and stronger and were more suited to their environment. The ones that hadn't changed were closer to death and they were not suited to their environment as much as the evolved group was.

Answer 2

The example of the peppered moth and the finch are best evidence I can think of to support natural selection. Industrial melanism is a phenomenon that affected over 70 species of moths in England. It has been best studied in the peppered moth, Biston betularia. Prior to 1800, the typical moth of the species had a light pattern. Dark colored or melanic moths were rare and were therefore collectors' items. During the Industrial Revolution, soot and other industrial wastes darkened tree trunks and killed off lichens. The light-colored morph of the moth became rare and the dark morph became abundant. In 1819, the first melanic morph was seen; by 1886, it was far more common; illustrating rapid evolutionary change. Eventually light morphs were common in only a few locales, far from industrial areas. The cause of this change was thought to be selective predation by birds, which favored camouflage coloration in the moth. In the 1950's, the biologist Kettlewell did release-recapture experiments using both morphs. A brief summary of his results are shown below. By observing bird predation from blinds, he could confirm that conspicuousness of moth greatly influenced the chance it would be eaten. Galapagos finches are the famous example from Darwin's voyage. Some of the finches had beaks adapted for eating large seeds, others for small seeds, some had parrot-like beaks for feeding on buds and fruits, and some had slender beaks for feeding on small insects One used a thorn to probe for insect larvae in wood, like some woodpeckers do. (Six were ground-dwellers, and eight were tree finches.) To Darwin, it appeared that each was slightly modified from an original colonist, probably the finch on the mainland of South America, some 600 miles to the east. It is probable that adaptive radiation led to the formation of so many species because other birds were few or absent, leaving empty niches to fill; and because the numerous islands of the Galapagos provided ample opportunity for geographic isolation. References Kettlewell, H. B. (1973). The Evolution of Melanism: The study of a recurring necessity.. Oxford, England: Oxford University Press. University of Michigan (2005). Evolution and Natural Selection. Retrieved September 16, 2008, from www.globalchange.umich.edu/globalchange1/current/lectures/selection/selection.html

Answer 3

The four types of evidence that Darwin used to support his concept of evolution were:

1. Fossil record
2. Geographic distribution of living species
3. Homologous body structures
4. Similarities in embryology

Answer 4

Individual organisms differ, but some of this variation is heritable. Species alive today are descended with modifications from ancestral species that lived in the distant past.

Answer 5

evolitinacoeis evidence

Answer 6

Yes.