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What is meant by the law of use and disuse and by the law of the transmission of acquired characteristics?
As per to the law of use and disuse the characteristics of a body vary as it is more or less used. This rule is valid for instance for features like the muscular mass and the size of the bones.
The law of the transmission of obtained characteristics in its turn established that parents could transmit to their offspring characteristics acquired by the law of use and disuse.
Name two stimulant drugs and state the undesirable side-effects of each. Amphetamine and cocaine are stimulant drugs. The side-effects of amphetamines are high blood pressure;
Side Effects of Sedatives and Hypnotics: Side effects are same like anti anxiety drugs such as hypotension, palpitation, syncope (fainting), change in libido, physical or psy
Q. What are the proteins? How can the protein diversity of living beings be described? Proteins are molecules made of sequences of amino acids bound by a peptide bond. The g
An interesting observation made by an American biologist H.C. Bumpus (1899) provides a good explanation for normalising selection. Bumpus collected some 136 injured house sparrows
It is conversion of antibody class to another resulting from genetic rearrangement of heavy chain same region genes in B cells. Isotope switching is also known as class switching.
Why is holophytic nutrition a mode of autotrophic nutrition
Which of the following statements is not true of mitosis? A. The original cell produces two identical daughter cells B. It follows duplication of DNA in the nucleus C. It involves
Q. What are the organs that are part of the female reproductive system? The organs that constitute the female reproductive system are the ovaries, the uterus, the Fallopian tub
Q. Are organic solvents like benzene and ether non-polar or polar substances? the ethers and Benzene are molecules without electrically charged portions and thus they are non-p
An increase in blood plasma levels of parathyroid hormone A. occurs in response to enhance in the levels of calcium ions in blood plasma. B. leads to enhance in the amou
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