Protozoa - Organisms Like Amoeba

Protozoa is a single cell organism which has specific characteristic for organisms. These can move from one place to another. They can catch their food and eat it. Amoeba is an example of protozoa.

This is found on pond water or in dirty water. It lives in pot holes too. This organism can expand its cell is called Pseudopodia. This organism can move from one place to another. This helps them in catching their food.

There are 1000 species of protozoa. Some protozoa bore diseases like parasites of malaria which causes disease in our red blood cells after reaching them.

Fungus (fungi like organisms)

Fungi look like plants but they don't have chlorophyll. Two types of common fungi are - fungi found on bread or fruits and fungi found on mushrooms or dirty and moist places. Fungi cannot make their own food but they absorb the juice of the rotten things where they are born.

These are single cell organisms (example - feast) and multi-cell (example -mushroom) and basically grow in dark, lukewarm and wet place.

Most of the fungi are harmful but some mushrooms make tasty food.

Useful Fungi

1. Some fungi is uses to make food and liquid objects. Yeast makes bread. Khammer is used to make idli, dosa etc.
2. Some mushrooms are eaten but most of the mushrooms are poisonous.
3. Some of the fungi are used to make penicillin or vitamin B.
4. Fungi decompose dead plants and elements in nature. They help in the circle of elements.

Harmful Fungi

1. Some fungi give disease like irritation or rings.
2. Some fungi harm wheat or barley.