When the pollen tube enters the ovule through the integuments,the process is known as?

How many different types of gametes will be produced by a plant with the genotype $AABbCc$?

When a wire of length $10 \ m$ is subjected to a force of $100 \ N$ along its length,the lateral strain produced is $0.01 \times 10^{-3} \ m$. The Poisson's ratio was found to be $0.4$. If the area of cross-section of the wire is $0.025 \ m^2$,its Young's modulus is

Which domain of life is known for surviving in extreme environmental conditions?

$A$ circular coil of area $200 ~cm^2$ and $50$ turns is rotating about its vertical diameter with an angular speed of $40 ~rad/s$ in a uniform horizontal magnetic field of magnitude $2 \times 10^{-2} ~T$. The maximum emf induced in the coil is (in $~V$)

Dividing the interval $[0,6]$ into $6$ equal parts and by using the trapezoidal rule,the value of $\int_0^6 x^3 dx$ is approximately: