NEET BIOLOGY

Detailed explanation-1: -Red tide is a marine environmental event where protists, including algae and dinoflagellates, go through a tremendous growth period, called a bloom, or an algal bloom.

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: -Red tides are caused by algae, which are tiny, microscopic organisms that grow in the water. Almost all bodies of water have some algae, but in a red tide, there is a lot more algae in the water than usual.

Detailed explanation-4: -Red tides are caused by dinoflagellates. Euglenas and their relative are motile, single cells that also have both plant and animal traits. They contain chlorophyll like plants, but lack cell walls like animal cells.