Which organisms obtain nutrition through both photosynthesis and absorption?

What are the products formed when phenyl ethyl ether is heated with concentrated $HBr$?

An unbiased coin is tossed to get $2$ points for turning up a head and $1$ point for the tail. If three unbiased coins are tossed simultaneously,then the probability of getting a total of an odd number of points is

Which one of the following is a slime mould?

$HIV$,which causes $AIDS$,first starts destroying:

$25 \ mL$ of $3.0 \ M \ HNO_3$ are mixed with $75 \ mL$ of $4.0 \ M \ HNO_3$. If the volumes are additive,the molarity of the final mixture would be $......... \ M$.