Biology · Textbook solutions

Biological Classification

Every solved example, exercise, and miscellaneous question, in the order the textbook teaches them. · 13 questions

Exercises

13 q

Ex 2 Q1 $Discuss how classification systems have undergone several changes over a period of time?$
State two economically important uses of:
Ex 2 Q2 (a) $heterotrophic bacteria$
Ex 2 Q2 (b) $archaebacteria$
Ex 2 Q3 $What is the nature of cell-walls in diatoms?$
Ex 2 Q4 $Find out what do the terms 'algal bloom' and 'red-tides' signify.$
Ex 2 Q5 $How are viroids different from viruses?$
Ex 2 Q6 $Describe briefly the four major groups of Protozoa.$
Ex 2 Q7 $Plants are autotrophic. Can you think of some plants that are partially heterotrophic?$
Ex 2 Q8 $What do the terms phycobiont and mycobiont signify?$
Give a comparative account of the classes of Kingdom Fungi under the following:
Ex 2 Q9 (i) $mode of nutrition$
Ex 2 Q9 (ii) $mode of reproduction$
Ex 2 Q10 $What are the characteristic features of Euglenoids?$
Ex 2 Q11 $Give a brief account of viruses with respect to their structure and nature of genetic material. Also name four common viral diseases.$