Which of the following enzymes are used to clarify the packed juices?
(A) Pectinases
(B) Kinases
(C) Proteases
(D) Nucleases
Choose the correct answer from the options given below:

If last year, there were 80 lotus plants in a lake. Then, 16 new lotus plants were added through reproduction and the current population is 96 now. The birth rate of lotus plant is

The pyramid of biomass in the sea is -

Read the passage carefully and give the answers to the question :
Does the number of species in a community really matter to the functioning of the ecosystem? This is a question for which ecologists have not been able to give a definitive answer. For many decades, ecologists believed that communities with more species, generally, tend to be more stable than those with less species. According to the International Union for Conservation of Nature and Natural Resources (IUCN) (2004), the total number of plant and animal species described so far is more than 1.5 million.
Among the vertebrates, which of the following is the most species-rich group ?

In a Mendelian dihybrid cross between a pea plant that has seeds with yellow color and round shape (RRYY) and another one that has seeds with green color and wrinkled shape (rryy), select the possible phenotypes obtained on self pollination after F\(_{1}\) generation.
(A) Round yellow
(B) Round green
(C) Wrinkled yellow
(D) Wrinkled brown
Choose the correct answer from the options given below:

The capacity to generate a whole plant from any cell/explant in culture medium is called as:

Arrange the amount of energy in a sequence from the highest trophic level to the lowest trophic level (Pyramid of Energy):
(A). 10,000 J
(B). 1000 J
(C). 10 J
(D). 100 J
Choose the correct answer from the options given below:

If a straight conductor of length 0.5 m is moved with a speed of \( 6 \text{ m s}^{-1} \) perpendicular to direction of a magnetic field of \( 1 \text{ Wb m}^{-2} \), the emf induced is :

The length of a rectangle is decreasing at the rate of \(4\) cm / minute and the width is increasing at the rate of \(3\) cm / minute , then the rate of change of the perimeter is

The given graph shows the variation of terminal potential difference V, across the combination of three identical cells in series to an external resistor versus the current i in the circuit. The internal resistance of each cell is :

The differential equation of the family of parabolas \(y^2=4 a x\) where \(a\) is an arbitrary constant is :

Two concentric coils \(X\) and \(Y\), each of radius \(2 \pi cm\), are placed at right angles to each other. If \(X\) and \(Y\) carry 4 A and 3 A currents, respectively, then the value of the magnetic field (in \(Wb m ^{-2}\) ) at the centre of the coils is (Take \(\mu_0=4 \pi \times 10^{-7} Wb A ^{-1} m^{-1}\) )

The role of a catalyst is to change :