Biology · Textbook solutions

Organisms and Populations

Every solved example, exercise, and miscellaneous question, in the order the textbook teaches them. · 14 questions

Exercises

14 q

Ex 11 Q1 $List the attributes that populations possess but not individuals.$
Ex 11 Q2 $If a population growing exponentially double in size in 3 years, what is the intrinsic rate of increase (r) of the population?$
Ex 11 Q3 $Name important defence mechanisms in plants against herbivory.$
Ex 11 Q4 $An orchid plant is growing on the branch of mango tree. How do you describe this interaction between the orchid and the mango tree?$
Ex 11 Q5 $What is the ecological principle behind the biological control method of managing with pest insects?$
Ex 11 Q6 $Define population and community.$
Define the following terms and give one example for each:
Ex 11 Q7 (a) $Commensalism$
Ex 11 Q7 (b) $Parasitism$
Ex 11 Q7 (c) $Camouflage$
Ex 11 Q7 (d) $Mutualism$
Ex 11 Q7 (e) $Interspecific competition$
Ex 11 Q8 $With the help of suitable diagram describe the logistic population growth curve.$
Ex 11 Q9 $Select the statement which explains best parasitism.$
Tap an option to check your answer.
Ex 11 Q10 $List any three important characteristics of a population and explain.$