Which of the following is not a bird ?

Certain species of which one of the following organisms are well known as cultivators of fungi?

In the nature, which of the following is/are most likely to be found surviving on a surface without soil?

1. Fern

2. Lichen

3. Moss

4. Mushroom

Select the correct answer using the code given below.

Which of the following have species that can establish symbiotic relationship with other organisms?

1. Cnidarians

2. Fungi

3. Protozoa

Select the correct answer using the code given below.