Q.12:- Organise a discussion in your class on the topic- Are viruses living or non-living? Answer Viruses are microscopic organisms that have characteristics of both living and non-living. A virus…
Q.12:- Organise a discussion in your class on the topic- Are viruses living or non-living? Answer Viruses are microscopic organisms that have characteristics of both living and non-living. A virus…
Q.11:- Give a brief account of viruses with respect to their structure and nature of genetic material. Also name four common viral diseases. Answer Viruses have a protein capsule and…
Q.10:- What are the characteristic features of Euglenoids? Answer Characterisitic Features of Euglenoids: → Fresh water organisms found in stagnant water. → Instead of cell wall they have a…
Q.9:- Give a comparative account of the classes of Kingdom Fungi under the following: (i) Mode of nutrition (ii) Mode of reproduction Answer → Phycomycetes- This group of fungi includes…
Q.8:- What do the terms phycobiont and mycobiont signify? Answer Lichens are good examples of symbiotic life of algae and fungi. Phycobiont is the name of the part composed of…
Q.7:- Plants are autotrophic. Can you think of some plants that are partially heterotrophic? Answer Some insectivorous plants, like bladderwort and venus fly trap are partially heterotrophic.
Q.6:- Describe briefly the four major groups of Protozoa. Answer The four major groups of Protozoa are: • Amoeboid protozoans: These organisms live in fresh water, sea water or moist…
Q.5:- How are viroids different from viruses? Answer Viroids are free RNAs without the protein coat, while virus have a protein coat encapsulating the RNA.
Q.4:- Find out what do the terms ‘algal bloom’ and ‘red-tides’ signify. Answer Algal bloom Algal bloom refers to an increase in the population of algae or blue-green algae in water,…
Q.3:- What is the nature of cell-walls in diatoms? Answer The cell walls of diatoms are made of silica. Their cell wall construction is known as frustule. It consists of…