Which of the following plants produces a poisonous cardiac glycoside chemical?

All the following interactions are mutualism,except

Pollinator mutualism are special interactions involving ...$A$...,which receive food or a place to lay eggs and ...$B$...,which receive pollen from others of their kind. Choose the correct option for $A$ and $B$.

Why can the moth and the $Yucca$ plant not complete their life cycles without each other?

Given below are two statements.
Statement $I$: $Calotropis$ growing in abandoned fields is never consumed by cattle and goats.
Statement $II$: $Calotropis$ produces highly poisonous cardiac glycosides.
In light of above statements,select the most appropriate answer from the option given below.

Which of the following relationships cannot be described as a negative interaction?