The correct answer is C. They are derived by similar environmental constraints.
Explanation:
In biology, an analogy refers to two or more types of organism that have structures or behaviors with the same function but do not share a common ancestor which means the structures or behaviors that are similar or identical developed independently. This can be explained due to similar conditions or constraints in the environment that force organisms of different environments to evolve in the same way. This concept differs from homologous traits because in homologous there is not a similarity in function and they involve a common ancestor. Considering this, the correct statement is "they are derived by similar environmental constraints" because they occur due to similar adaptative situations.
The species is the correct answer in the question above. For they have the ability to interbreed even though they are isolated from other organisms. They are called or termed of two organisms that has the ability to produce another specie or offspring after they mated.
DNA- DNA, short for deoxyribonucleic acid, is the molecule that contains the genetic code of organisms. ... DNA is in each cell in the organism and tells cells what proteins to make.