During meiosis in a pollen mother cell, the daughter cells are interconnected by cytoplasmic passages. The whole structure is called:

What are the gametes of angiosperms like?

Match the characteristics of anther wall layers given in Column-$I$ with their names given in Column-$II$.

Column-$I$	Column-$II$
$i$. Nutritive layer	$a$. Epidermis
$ii$. Layer with fibrous thickness	$b$. Middle layers
$iii$. Protective layer	$c$. Tapetum
$iv$. Layer that disintegrates in mature anther	$d$. Endothecium

Choose the correct option given below.

Which of the following types of anther is found in the family $Malvaceae$?

Given below are two statements.
Statement $I$: Generally,anthers in angiosperms are dithecous,having two pollen sacs in each lobe.
Statement $II$: Each sporangium produces pollens from sporogenous tissues by the process of sporogenesis.
In light of the above statements,select the correct answer from the options given below.

How many wall layers surround a typical microsporangium?