Let's evaluate each statement in detail:
Cuscuta is a chlorophyllous endoparasite:
The human liver fluke needs only one host to complete its life cycle:
The life cycle of an endoparasite is more complex due to their extreme specialization:
During the course of evolution, the host bird's eggs have evolved to resemble the eggs of the parasitic bird:
The correct statement is only statement 3 because the life cycle of endoparasites is indeed more complex due to their extreme specialization.
So, the correct answer is (C): Only 3
Let's evaluate each statement:
Based on the analysis, only statement 3 is correct.
Therefore, the correct option is: Only 3.
The given graph shows the range of variation among population members, for a trait determined by multiple genes. If this population is subjected to disruptive selection for several generations, which of the following distributions is most likely to result?
Read the following passage and answer the questions that follow. According to evolutionary theory, every evolutionary change involves the substitution of a new gene for the old one and the new allele arises from the old one. Continuous accumulation of changes in the DNA coding for proteins leads to evolutionary differences. The chemical composition of DNA is basically the same in all living beings, except for differences in the sequence of nitrogenous bases. Given below are percentage relative similarities between human DNA and DNA of other vertebrates:
(a) What is the term used for the substitution of a new gene for the old one and the new allele arising from the old one during evolutionary process?
(b) Which one of the following holds true for the data provided in the above table?
(c) [(i)] To which category of evolution (divergent or convergent) does the following relationship belong? Justify your answer.
Human and Rhesus Monkey
OR
[(ii)] Differentiate between Convergent and Divergent evolution.