Which organisms protect themselves from predators by having a bitter taste?

Identify the examples of Commensalism and Mutualism from the given list:
$I -$ Mango tree and Orchid
$II -$ Fungi and Algae or Cyanobacteria (Lichen)
$III -$ Fungi and roots of higher plants (Mycorrhizae)
$IV -$ Whale and Barnacles
$V -$ Sea Anemone and Clown fish
$VI -$ Plants and Seed dispersers
$VII -$ Plants and Pollinators
$VIII -$ Cattle egret and Grazing cattle
Commensalism $\quad\quad$ Mutualism

Which of the following is an ectoparasite?

$Cuscuta$ is an example of

The stimuli through which a dancing scout bee communicates the location of a food source to other worker bees in a hive are

Which type of interaction is seen between sea anemone and clown fish?