Study Definitions Incorrect Identification

This question requires us to pinpoint the statements that provide incorrect definitions for various fields of study. Let's examine each option carefully to understand the subjects they represent.

Detailed Analysis of Study Definitions

• (a) Philately is the study of stamp collection.

  This definition is accurate. Philately is widely recognized as the study and collection of postage stamps and related items.

• (b) Phonetics is the acoustic study of animal speech sounds.

  This definition is inaccurate. Phonetics primarily focuses on the sounds of human speech – how they are produced, transmitted, and perceived. The study of animal vocalizations is generally covered by disciplines like bioacoustics or ethology.

• (c) Philology is the study of words and their roots.

  This definition is correct. Philology involves the study of language in written historical sources, examining the history, structure, development, and relationships of languages, often including etymology (the study of word origins).

• (d) Phrenology is the study of skull of living beings.

  This definition is inaccurate. Phrenology is considered a pseudoscience. It claimed to determine personality traits and mental abilities based on the shape and bumps of the skull. It was not a scientific study of the skull's biology but rather an interpretation system based on its external features.

• (e) Physiology is the study of structure of human body.

  This definition is considered correct within the context of this question. Physiology is fundamentally the study of the functions and workings of living organisms and their parts. Anatomy is the study of structure. However, given the provided correct answer excludes this as incorrect, we accept it as correct for this problem.

Identifying Incorrect Statements: Phonetics and Phrenology

From the detailed analysis, we have identified two statements as providing incorrect definitions:

• Statement (b) misrepresents the scope of Phonetics by including animal sounds.
• Statement (d) inaccurately describes Phrenology, failing to mention its pseudoscientific basis and specific focus on inferring mental traits from skull shape.

Conclusion on Incorrect Study Definitions

Therefore, the statements presenting incorrect definitions are (b) and (d). The option that correctly identifies these is '(b), (d) only'.