$A$ sequence of how many nucleotides in messenger $RNA$ makes a codon for an amino acid?

Match the following components with their percentage of the total cellular mass:

Components	$\%$ of the total cellular mass
$A$. Water	$1$. $70-90$
$B$. Protein	$2$. $10-15$
$C$. Carbohydrates	$3$. $3$
$D$. Lipids	$4$. $2$
$E$. Nucleic acids	$5$. $5-7$
$F$. Ions	$6$. $1$

If $f(x) = \frac{\cos^2 x + \sin^4 x}{\sin^2 x + \cos^4 x}$,for $x \in R$,then $f(2002)$ is equal to

The basic unit of classification for plants and animals is ....

Which hormones stimulate the production of pancreatic juice and bicarbonate?

If $x$ is small,so that $x^2$ and higher powers can be neglected,then the approximate value for $\frac{(1-2 x)^{-1}(1-3 x)^{-2}}{(1-4 x)^{-3}}$ is