A special case of natural selection is sexual selection, referring to selection on any characters that influence an organism's access to mating partners. Besides resulting in morphological, physiological, or behavioral traits that allow individuals to succeed in competitive interactions, natural selection...
Define Natural Sciences. Natural Sciences synonyms, Natural Sciences pronunciation, Natural Sciences translation, English dictionary definition of Natural Sciences. n. A science, such as biology, chemistry, or physics, that deals with the objects, phenom
Nature grants long periods of time for the work ofnatural selection. 自然界允许极长的时期,给自然选择来进行它的工作. 辞典例句 Natural SelectionProtected Some Asian Populations From Alcoholism, Study Suggests. Science Daily. Alcohol Reports.
Natural selection is a major, although not the only, scientific theory to explain how the diversity of life with so many species and large variations in characters came to exist. The concept of natural selection was first formulated by Charles Darwin (1809–82), and it is still considered to...
根据第一段中“Natural selection is the process(过程)by which one type of animal survives because of certain characters that make it more likely to live than others. The history of the peppered moth(灰蛾)is an example of the natural selection process.(自然选择是一个过程,一种动物之所以能够...
The meaning of NATURAL SELECTION is a natural process that results in the survival and reproductive success of individuals or groups best adjusted to their environment and that leads to the perpetuation of genetic qualities best suited to that particular
The Drosophila melanogaster fourth chromosome, believed to be nonrecombining and invariable, is a classic example of the effect of natural selection in eli... W Wang,K Thornton,A Berry - 《Science》 被引量: 170发表: 2002年 Evolutionary analysis of TATA-less proximal promoter function. Many mol...
Natural selection as a mechanism of evolution is a central concept in biology; yet, most nonbiology-majors do not thoroughly understand the theory even aft... DL Anderson,KM Fisher,GJ Norman - 《Journal of Research in Science Teaching》 被引量: 691发表: 2002年 Students' conceptions of natur...
Theory shows how sexual selection can exaggerate male traits beyond naturally selected optima and also how natural selection can ultimately halt trait elaboration. Empirical evidence supports this theory, but to our knowledge, there have been no experime