Which of the following is correct, according to Ernst Mayr's concept of species?

Which of the following is correct according to fig?

Which of the following is correct according to the Lewis acid-base concept ?

Which of the following statements is correct according to the basic concepts of thermodynamics which govern the feasibility of a metallurgical process ?

Which of the following concepts are correct

Which of the following statements is true according to the concept of biological classification ?

Which of the following statements is true according to the concept of biological classification ?

Which of the following is not correct about the concept of resonance?