Scrotal sacIn human males, the testes are situated outside the abdominal or pelvic cavity in a sac of skin called the scrotal sac. It acts as thermoregulation to keep the testicular temperature 2-3c lower than the...
Regeneration, regeneration in animals, regeneration in planaria, regeneration in hydra.
REGENERATIONIt is the capacity of the body to produce the lost part of the proliferation of the cells. Regeneration leads to the healing of wounds, replacing worn outcall, and even the formation of the complete individual. Types...
Pre-Mendelian experiment || Mendel's Laws of Inheritance// Heredity and variation
Pre-Mendelian experiment As we know, reproduction in living organisms is done to facilitate the continuity of life. The progeny produced, often resemble their parents in most of the characteristics. This passage...
what is the growth? factory of growth|| imp information about information?????
growth growth in living beings can be defined...
ape man || Homo habilis, Homo erectus discovery and characteristics
Australopithecus africanus Discovery ...
human evolution // Ramapithecus, Dryopithecus discovery and cheracteristics.
human evolutionIt is the aspect of evolution which is concerned with the emergence of human as distinct species. Various evidence support that humans and apes have descended from common ancestors.The beginning of primates'...
what is mutation? / what is gene flow? / what is non-random mating? define
MUTATION It is a sudden and heritable change in an organism. It is generally due to a change in the base sequence of nucleic acid in the genome of an organism. Mutations are considered to be the ultimate source of variation....
evidence of connective link // example and detail explanation
EVIDENCE FROM CONNECTIVE LINKSA connective link demonstrates the characteristics of more than one group of organisms (taxonomically). Such organisms establish continuity in the series by proving that one group has...
Hardy-Weinberg equilibrium || polymorphism/ Defination, example.
specialized supportive tools in speciation (1) Hardy-Weinberg equilibrium The Hardy-Weinberg law equation theorem is the fundamental law of population genetics.it provides the basis for studying the mendelian...
natural selection/ definition, characters, industrial melanism, and example
NATURAL SELECTION :some genetic variability is always presence in a population in a population. such alleles make organism better adapted to the environment leading to their survival and continuous reproduction. The...
Darwinism or Darwin's theory of evolution /postulates of Darwin || definition , natural selection ,speciation , example.
DARWINISM OR DARWIN'S THEORY OF EVOLUTION :after collection a vast amount of information, Darwin began to realised that under the intention competition of members in a population, any variation, which favour survival...
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