Auxospores and hormocysts are formed respectively, by:

1. Some cyanobacteria and many diatoms

2. Several diatoms and a few cyanobacteria

3. Several cyanobacteria and several diatoms

4. Some diatoms and several cyanobacteria 

There exists a close association between the alga and the fungus within a lichen. The fungus:
 

Barophilic prokaryotes:
 

What is correct for the stages of Puccinia:
1. Telia and aecia on wheat
2. Telia and uredo stage on wheat
3. Telia and aecia on barberry
4. None

According to five kingdom system, blue green algae belongs to:
1.  Metaphyta
2.  Monera
3.  Protista
4.  Algae

Which of the following survives a temperature of 104 to $106°C$?
1.  Marine Archaebacteria
2.  Hot water spring thermophiles
3.  Seeds of angiosperms
4.  Eubacteria

Lichens are a well-known combination of an alga and a fungus where the fungus has:
1. An epiphytic relationship with the alga
2. A parasitic relationship with the alga
3. A symbiotic relationship with the alga
4. A saprophytic relationship with the alga

Koch's postulates are not applicable to:
1.  Mycobacterium leprae
2.  Tuberculosis
3.  Pneumonia
4.  Cholera

Diatomaceous earth is used as a heat insulator in boilers and steam pipes because the cell wall of diatom is
1.  Composed of iron
2.  Composed of silicon dioxide
3.  a good conductor of heat
4.  a bad conductor of electricity

Enzymes are not found in:
1. Fungi
2. Algae
3. Virus
4. Cyanobacteria