Which of the following is incorrect about Cyanobacteria?

1. They are photoautotrophs

2. They lack heterocysts

3. They often form blooms in polluted water bodies

4. They have chlorophyll A similar to green plants

Match the organisms in column I with habitats in column II.

      Column I                              Column II

(a) Halophiles                        (i) Hot springs

(b) Thermoacidophiles            (ii) Aquatic environment

(c) Methanogens                    (iii) Guts of ruminants

(d) Cyanobacteria                  (iv) Salty areas

Select the correct answer from the options given below:

1. (a)-(iv), (b)-(i), (c)-(iii), (d)-(ii)

2. (a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)

3. (a)-(iii), (b)-(iv), (c)-(i), (d)-(i)

4. (a)-(ii). (b)-(iv), (c)-(iii), (d)-(i)

Which of the following is a correct statement?
1. Mycoplasma have DNA, Ribosome and cell wall.
2. Cyanobacteria are a group of autotrophic organisms classified under Kingdom Monera.
3. Bacteria are exclusively heterotrophic organisms.
4. Slime moulds are saprophytic organisms classified under Kingdom Monera.