The most common opportunistic pathogenic yeast is the <em>Candida albicans</em>. It is present in the human alimentary canal and can also survive outside the human body. The Candidiasis is the common fungal opportunistic yeast infection. This type of infection does not leads to a disease. Other yeast opportunistic infection species are <em>Candida tropicalis</em>, <em>Candida glabrata</em>, and <em>Candida dubliniensis</em>
Explanation: The plant is responding to external stimuli by growing toward light like our eyes adjusting to the light in the dark......................