Which of the following have species that can establish symbiotic relationship with other organisms? 1. Cnidarians 2. Fungi 3. Protozoa

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

Organisms of which of the following phylum are called sponges?

Which of the following organisms has white blood?

Which of the following is the correct order of plant species from higher to lower order ?

With reference to 'earthworms', which of the following statements is/are correct? 1. Earthworms improves soil fertility and are known as farmer's friends. 2. Earthworm has two pair of hearts.