EVERYDAY SCIENCE

Detailed explanation-1: -Instead, some physical similarities are analogous: they evolved independently in different organisms because the organisms lived in similar environments or experienced similar selective pressures. This process is called convergent evolution.

Detailed explanation-2: -At times, organisms that are not closely related look similar because of convergent evolution. This is the result of having similar environments.

Detailed explanation-3: -In evolutionary biology, convergent evolution is defined as the process whereby distantly related organisms independently evolve similar traits to adapt to similar necessities. VLRs and TCRs/BCRs both serve as antigen receptors, but are evolutionarily unrelated.

Detailed explanation-4: -Different organisms vary in how they look and function because they have different inherited information; the environment also affects the traits that an organism develops. In sexual reproduction, each parent contributes half of the genes acquired by the offspring resulting in variation between parent and offspring.

Detailed explanation-5: -If two or more species share a unique physical feature, such as a complex bone structure or a body plan, they may all have inherited this feature from a common ancestor. Physical features shared due to evolutionary history (a common ancestor) are said to be homologous.