BIOL 205 Lecture Notes - Lecture 2: Electronegativity, Atomic Number, Hemoglobin

• School: University of Calgary
• Department: Biology
• Course: BIOL 205
• Professor: Nelly Pant￩

Document Summary

Is conciliant with theories concerned with other aspects of the natural world. Evolutionary theory: evolution by itself is a fact- the biosphere has changed greatly over time, dar(cid:449)i(cid:374)"s theor(cid:455) of e(cid:448)olutio(cid:374) through (cid:374)atural sele(cid:272)tio(cid:374) gi(cid:448)es us a (cid:373)e(cid:272)ha(cid:374)is(cid:373) e(cid:454)plai(cid:374)i(cid:374)g ho(cid:449) populations of organisms can change over time. Evolution through natural selection: this theory postulates. Individuals in a population vary in some behavioral or physical characteristic: this variation is heritable, there is a correlation between the nature of the heritable variation and reproductive success. Individuals that survive to maturity will have more offspring than can survive in the populatio(cid:374)"s habitat: given these, the characteristic that gives individuals bearing it more reproductive success will become prevalent in the population over time. Iron is a necessary part of hemoglobin, which is vital for the transportation of oxygen via blood cells. Iodine is necessary for the synthesis of thyroid hormone, which regulates metabolic rate.