Match List $I$ with List $II$.

$A$. Natality	$I$. $\frac{dN}{dt} = rN$
$B$. Exponential growth	$II$. Death rate
$C$. Mortality	$III$. Birth rate
$D$. Logistic growth	$IV$. $\frac{dN}{dt} = rN \left[1 - \frac{N}{K}\right]$

Identify $X$ and $Y$ in the given figure,which represents the biome distribution with respect to mean annual temperature and mean annual precipitation.

Consider the following statements $(A-D)$ each with one or two blanks.
$(A)$ Bears go into $ . . . . . . (1) . . . . . . $ during winter to $ . . . . . . (2) . . . . . . $ cold weather.
$(B)$ $A$ conical age pyramid with a broad base represents $ . . . . . . (3) . . . . . . $ human population.
$(C)$ $A$ wasp pollinating a fig flower is an example of $ . . . . . . (4) . . . . . . $.
$(D)$ An area with high levels of species richness is known as $ . . . . . . (5) . . . . . . $.
Which one of the following options gives the correct fill-ups for the respective blank numbers from $(1)$ to $(5)$ in the statements?

Match the columns:

Column-$I$	Column-$II$
$(a)$ Earthworm	$(i)$ Birth-rate
$(b)$ Succession	$(ii)$ Pioneer species
$(c)$ Population rise	$(iii)$ Pollination
$(d)$ Ecological services	$(iv)$ Saprotrophs

Read the given statements and identify the correct and incorrect ones.
$(1)$ The exponential growth curve can be calculated using the formula $N_t = N_0 e^{rt}$.
$(2)$ Bamboo and salmon fish show the production of offspring only once during their entire lifespan.
$(3)$ In the amensalism type of interaction,one species is harmed and the other species receives no benefit or harm.
$(4)$ $A$ competitively superior species eliminates the inferior species in a habitat.

Comment on the following figures: $I, II$ and $III$. Here,$A, B, C, D, G, P, Q, R, S$ represent different species.