Mycorrhizae

Q. Pinus seed cannot germinate and establish without fungal association. This is because

1. its seeds contain inhibitors that prevent germination
2. its embryo is immature
3. it has obligate association with mycorrhyzae
4. it has very hard seed coat

Q.

Which one of the following microbes forms symbiotic association with plants and helps in their nutrition?

1. Glomus

2. Trichoderma

3. Azotobacter

4. Aspergillus

Q.

Mycorrhiza is a ________ .

1. virus

2. cyanobacteria

3. bacteria

4. fungi

Q. Euplectella becomes a precious ornamental gift, if it contains

1. A pearl
2. A gem
3. Remains of shrimp pair
4. Coral