What is oogamy in fungi?

$A$ wire $50 \ cm$ long and $1 \ mm^2$ in cross-section carries a current of $4 \ A$ when connected to a $2 \ V$ battery. The resistivity of the wire is:

The function $f(x) = (x^2 - 1) | x^2 - 3x + 2 | + \cos(| x |)$ is not differentiable at

In a $\triangle ABC$,the expression $\frac{(a+b+c)(b+c-a)(c+a-b)(a+b-c)}{4b^2c^2}$ is equal to:

Which of the following structures or regions is incorrectly paired with its function?

Let $f(x) = x^3 + bx^2 + cx + d$ where $0 < b^2 < c$. Then $f(x)$: