NEET BIOLOGY

Detailed explanation-1: -The algae Pseudo-nitzschia produces a toxin called domoic acid that can cause vomiting, diarrhea, confusion, seizures, permanent short term memory loss, or death, when consumed at high levels.

Detailed explanation-2: -This bloom, like many HABs, is caused by microscopic algae that produce toxins that kill fish and make shellfish dangerous to eat. The toxins may also make the surrounding air difficult to breathe. As the name suggests, the bloom of algae often turns the water red.

Detailed explanation-3: -The Florida red tide is caused by blooms of a type of microalgae known as a dinoflagellate. This is a single-celled alga called Karenia brevis and it is usually found in warm saltwater, but it can exist at lower temperatures.

Detailed explanation-4: -While red drift algae are not toxic, it can be smelly as it decomposes, especially if marine animals such as fish have been caught in it. Some beachgoers may also find it unsightly.