The function of nitrogen fixation in Anabaena (cyanobacterium) is performed by

(1) thylakoid

(2) heterocyst

(3) phycocyanin

(4) phycoerythrin

Plant decomposers are

(1) Monera and Fungi

(2) Fungi and Plantae

(3) Protista and Animalia

(4) Animalia and Monera

These organisms are fungus like in one phase of their life cycle and Amoeba like in another phase of their life cycle

(1) diatoms

(2) slime molds

(3) dinoflagellates

(4) water molds

In which of the following patterns of viral replication, viruses enter a cell, replicate and then cause the cell to burst, releasing new viruses?

(1) Lytic

(2) Lysogenic

(3) Reprogenic

(4) Both (1) and (2)

1. The biological classification was attempted instinctively
a. to make scientific studies easy
b. to use organisms for our own use
c. to make better understanding of the research running in all over the world
d. to make connection between living and non-living

The first attempt for Biological  classification was because of the need to use organisms for our own use. Here which kind of used are considered?

1. Food and shelter
2. Food and Hunting
3. Food, shelter and clothing
4. Except clothing all are correct

First time the scientific basis for classification was attempted by -

1. Theopharastus
2. Aristotle
3. Van Neil
4. Darwin

Which of the following statement is not incorrect with respect to biological classification attempted by Aristotle?

1. Based on complex morphological characters
2. Plants were classified into trees, shrubs and herbs
3. Animals were classified on the basis of nutrition
4. Phylogeny was also considered

The presence of RBC to classify animals was used as a unique criterion by

1. Aristotle
2. Theopharastus
3. Van Neil
4. Huxley

Which of the following statement is wrong with respect to two Kingdom classification?

1. Developed at the time of Linnaeus
2. Used till very recently
3. Could distinguish between photosynthetic and non-photosynthetic
4. Easy to do and easy to understand