$A$ feature of reproduction that is common to $Amoeba$,$Spirogyra$ and $Yeast$ is that

Why does bread mould grow profusely on a moist slice of bread rather than on a dry slice of bread?

$(a)$ Identify the asexual method of reproduction in each of the following organisms:
$(i)$ Rose
$(ii)$ Yeast
$(iii)$ Planaria
$(b)$ What is fragmentation? Name a multicellular organism which reproduces by this method.

Which of the following organisms undergoes binary fission?

In the process of grafting,what is the part of the plant that possesses the root system called?

Differentiate between binary fission and multiple fission.