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In the scientific competition against fixism what are the main arguments that favor evolutionism?
The major arguments in favor of evolutionism are: paleontological, from the study of similarities among fossils of dissimilar periods; of compared anatomy, the existence of structures with similar origin and function and of residual organs, as the human appendix, that reveal relationships between species; of compared embryology, similarities of structures and developmental processes between embryos of related species; of molecular biology, larger percentage of same nucleotide sequences in the DNA of species having common ancestors.
What do you mean by Advanced characters The traits, or characteristics, that an animal has that are not ancestral to the taxon. They appear later in the evolutionary history of
The intermediates in the cycle give precursors for various biosynthetic pathways. An instance is as given below: - From citrate synthesis of fatty acids; - Amino acid synth
Q. What is the typical conformation of the age pyramids of underdeveloped countries? The age pyramids of the peripheral countries or the underdeveloped countries have character
Implantation : It is the process in which the blastocyst (developing zygote) is attached to the glandular uterine wall and then embedded in the wall of uterus. 1) In human bein
Q. Show the Collection of Primary Samples of grain? Sampling of grains begins with the collection of the primary sample i.e. sample of the consignment. The process involved in
before stem cuttings are planted the cut end of the stem is often dipped in a hormone powder .what is the point of this?
Assume that a dihybrid cross (AaBb X AaBb) is made in which the gene loci are autosomal, independently assorting, and incompletely dominant. What phenotypic ratio would you expect
Self- vs. Cross-Pollination A major advantage of self-pollination is its certainty. Continued self-pollination over many generations, however, results in weaker progeny. This
physiological adaptation of parasites for infectiousness?
What is the difference between nematocyst and spicules? Nematocysts are on Cnidarians Spicules are in Poriferae
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