Biology - Organisms and Populations Question with Solution | TestHub
Given below are two statements related to natality and mortality:
Statement (I): Absolute natality will be always more than realized natality.
Statement (II): Absolute mortality will be always more than realized mortality.
In light of the above statements, choose themost appropriateanswer from the options given below.
Options:
Answer:
Solution:
Absolute natality (also known as maximum or physiological natality) is the theoretical maximum production of new individuals under ideal conditions with no ecological limiting factors. Realized natality (or ecological natality) is the actual production of new individuals under specific environmental conditions. Since ideal conditions are rarely met, absolute natality is always greater than realized natality. Thus, Statement (I) is correct.
Absolute mortality (or minimum mortality) is the theoretical minimum loss of individuals under ideal conditions, where individuals die only due to old age. Realized mortality (or ecological mortality) is the actual loss of individuals under given environmental conditions, which includes deaths due to predation, disease, and other environmental pressures. Therefore, realized mortality is always greater than absolute mortality. Thus, Statement (II) is incorrect.
Answer: Statement (I) is correct but Statement (II) is incorrect.
