#the organs of different organisms whose works are too different are called homologous organs.


# lizard, bird and man are too different and do different works by their forelimbs, so it is homologous organs.

Explanation:
The forelimbs of frog, lizard, bird, and man show evolutionary relationships in terms of homologous organs. Homologous organs are structures that have a similar basic structure but may have different functions in different organisms. In this case, the forelimbs of these organisms have a similar basic structure despite their different functions.
Here is a detailed explanation of the evolutionary relationships:
Homologous Organs:
- Homologous organs are those that have a common ancestry and share a similar basic structure, although they may have different functions in different organisms.
- The forelimbs of frog, lizard, bird, and man are considered homologous organs because they have a similar bone structure, with similar bones such as the humerus, radius, and ulna.
- The presence of homologous organs suggests a common ancestor from which these organisms evolved.
Other options explained:
Hand Relationship:
- The term "hand relationship" is not a scientific term used to describe the evolutionary relationships of these organisms.
- While all of these organisms have some form of a limb or appendage that can be considered a hand, this does not explain their evolutionary relationship.
Missing Links:
- The term "missing links" refers to hypothetical transitional forms that would fill the gaps in the fossil record between different species.
- The existence of missing links is a debated topic in evolutionary biology, and it is not directly related to the forelimbs of these specific organisms.
Analogous Organs:
- Analogous organs are structures that have a similar function but do not share a common ancestry.
- The forelimbs of these organisms are not considered analogous organs because they have a similar basic structure, indicating a shared ancestry.
In conclusion, the correct answer is D: Homologous organs. The forelimbs of frog, lizard, bird, and man share a similar basic structure, indicating a common ancestry. This supports the idea of evolution and common descent.