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Why do substances react with each other?
Chemical reactions occur due to the products of the reaction have less energy than the reactants (drive toward less energy). These reactions free energy into the environment, like the burning of a match. Chemical reactions also happen because the products are more random (less ordered) than the reactant (drive toward greater entropy).
Second Stage of Invagination The 2 nd stage of invagination starts with release of secondary mesenchyme from the tip of archenteron into the blastocoel. The cells of secondar
NON-PROTEI N AMINO ACIDS Non-protein amino acids are the ones which are not incorporated in proteins but occur freely or in combined state in non-protein substances. Their
Q. Why, even though they have an open circulatory system, can flying insects like flies beat their wings with great speed? In insects the circulatory system is open but this sy
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
Poriferans and cnidarians do not have excretory systems. Do platyhelminthes have an excretory system? Platyhelminthes have a primitive excretory system made of flame cells (als
Explain the Kingdom Fungi organisms? Kingdom Fungi consists of mostly eukaryotic, multicellular, non-photosynthetic organisms that derive their nutrients by absorption. Fungi
Transmissible spongif orm encephalopathies Transmissible spongiform encephalopathies (TSEs, also called Prion diseases) are fatal neurodegenerative diseases such as scrapie of
Q. What is the function of vitamin E? In which foods can it be found? Vitamin E is also known as tocopherol is a fat-soluble vitamin that participates as coenzyme in the respir
topics for zoology assignment for plus one
in a school laboratory, what is usually regarded as evidence that photosynthesis has occurred in plants
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