Which one of the following is a matching set of a phylum and its three examples?
1. Cnidaria- Bonellia, Physalia, Aurelia
2. Platyhelminthes- Planaria, Schistosoma, Enterobius
3. Mollusca- Loligo, Teredo, Octopus
4. Porifera- Spongilla, Euplectella, Pennatula
Metameric segmentation is characteristic of:
| 1. | Platyhelminthes and Arthropoda |
| 2. | Echinodermata and Annelisa |
| 3. | Annelida and Arthropoda |
| 4. | Mollusca and Chordata |
Which of the following pairs of an animal and a plant represents endangered organisms in India?
1. Bentinckia nicobarica and red panda
2. Tamarind and rhesus monkey
3. Cinchona and leopard
4. Banyan and black buck
Jurassic period of the Mesozoic era is characterised by:
| 1. | gymnosperms, adminant plants, and first birds appear |
| 2. | radiation of reptiles and the origin of mammal-like reptiles |
| 3. | Dinosaurs become extinct and angiosperms appear |
| 4. | flowering plants and the first dinosaurs appear |
What is common about Trypanosoma, Noctiluca, Monocystis, and Giardia?
1. These are all unicellular protists
2. They have flagella
3. They produce spores
4. These are all parasites
Which of the following statements regarding cilia is not correct?
| 1. | The organized beating of cilia is controlled by fluxes of Ca2+ across the membrane |
| 2. | Cilia are hair-like cellular appendages |
| 3. | Microtubules of cilia are composed of tubulin |
| 4. | Cilia contain an outer ring of nine doublet microtubules surrounding two single microtubules |
Microbes found to be very useful in genetic engineering are:
| 1. | Escherichia coli and Agrobacterium tumefaciens |
| 2. | Vibrio cholerae and a tailed bacteriophage |
| 3. | Diplococcus sp. and Pseudomonas sp. |
| 4. | Crown gall bacterium and caenorhabditis elegans |
Which of the following environmental conditions are essential for the optimum growth of Mucor on a piece of bread?
| (A) | The temperature of about 25 °C |
| (B) | The temperature of about 5 °C |
| (C) | Relative humidity of about 5% |
| (D) | Relative humidity of about 95% |
| (E) | A shady place |
| (F) | A brightly illuminated place |
Choose the answer from the following options:
1. A, C, and E only
2. A, D, and E only
3. B, D, and E only
4. B, C, and F only
Evolutionary history of an organism is known as:
1. Phylogeny
2. Ancestry
3. Palaeontology
4. Ontogeny
Which of the following is considered a hot spot of biodiversity in India?
1. Western Ghats
2. Indo-Gangetic plain
3. Eastern Ghats
4. Aravalli hills
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