Q. When food and space for a population are unlimited? I. Each species has the ability to realize fully its inherited potential to grow II. Then it is equal to $dN/dt = dN$ III. It is described by J-shaped curve IV. It is described by S-shaped curve V. Than it has greater intrinsic rate for resources VI. There are more competition among themself Choose the incorrect statements

A) I, II and III
B) II, IIII and IV
C) IV and VI
D) IV, V and VI
Explanation

When food and space are unlimited than population. (i) Increased by using its maximum biotic potential (ii) Shows exponential growth $\frac{dN}{dt} = rN$ (iii) Shows exponential growth curve also called ‘J-shaped curve (iv) Show greater intrinsic rate A population growing in a habitat with limited resources shows three phases. (i) Lag phase It is the initial phase in which a population adapt themself according to the environment and starts to increase their number (ii) Log phase It is the second phase in which a population use its resources maximally and increases their number exponentially. Number of birth >> Number of death (iii) Stationary phase It is the 3^(rd) phase in which the population reached the carrying capacity level and population get stationary position. No of death = No of death [image:13_image25.emf]

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.