is this study related with any kind of physical exercise?
UNANSWERABLE
when are organisms considered to belong to the same species When two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction what is it classified as? UNANSWERABLE what is the main topic defined as? Biologists and taxonomists have made many attempts to define species, beginning from morphology and moving towards genetics what are the historical notes for the last word above? The observation that living things inherit traits from their parents has been used since prehistoric times to improve crop plants and animals through selective breeding name it's different kinds? Molecular genetics, epigenetics and population genetics what is the first kind of it? It is a sub-field of biology that addresses how differences in the structures or expression of DNA molecules manifests as variation among organisms what kind of different kinds does it have? Classical Mendelian inheritance, cellular biology, molecular biology, biochemistry, and biotechnology the first kind, when was it discovered? 1865 and 1866 in the previous question, what is the second last field related to? Biochemistry  is the study of chemical processes within and relating to living organisms what materials does it start off with? Around two dozen chemical elements are essential to various kinds of biological life
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Biochemistry [SEP] Starting materials: the chemical elements of life
Around two dozen chemical elements are essential to various kinds of biological life. Most rare elements on Earth are not needed by life (exceptions being selenium and iodine), while a few common ones (aluminum and titanium) are not used. Most organisms share element needs, but there are a few differences between plants and animals. For example, ocean algae use bromine, but land plants and animals seem to need none. All animals require sodium, but some plants do not. Plants need boron and silicon, but animals may not (or may need ultra-small amounts). Just six elements—carbon, hydrogen, nitrogen, oxygen, calcium and phosphorus—make up almost 99% of the mass of living cells, including those in the human body (see composition of the human body for a complete list).