Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEET2026BiologyChapterActual

Which of the following statements correctly describes the theory of spontaneous generation?

Options

  1. ALife arises only from pre-existing living organisms.
  2. BLife came out of decaying and rotting matter like straw and mud.
  3. CThe first form of life originated from non-living organic molecules.
  4. DUnits of life were transferred to Earth from outer space.

Correct answer

B. Life came out of decaying and rotting matter like straw and mud.

Step-by-step solution

The theory of spontaneous generation states that life came out of decaying and rotting matter like straw, mud, etc. The theory of biogenesis states that life arises only from pre-existing living organisms. The theory of chemical evolution states that the first form of life originated from non-living organic molecules. The theory of panspermia states that units of life called spores were transferred to Earth from outer space. Answer: Life came out of decaying and rotting matter like straw and mud.

Practice Chapter on Quantrex Academy →

More from Chapter

Consider the following three biomolecules: X: Uridine Y: Cytidylic acid Z: Guanine Choose the option that correctly categorizes X, Y, and Z. 2026The complete, catalytically active enzyme together with its bound non-protein constituent is known as: 2026During a laboratory experiment, a student accidentally boils a sample of salivary amylase before adding it to a starch solution. Which of the following best explains the most likel 2026During a biological survey, a researcher discovers a new organism. To classify it properly, she examines its external and internal structure, cellular organization, developmental p 2026Given below are the stages in the sexual reproduction of higher fungi. Arrange the following stages in the correct sequence. A. Fusion of parental nuclei (Karyogamy) B. Meiosis in 2026Read the given statements regarding the general characteristics of bryophytes and select the incorrect statement. 2026Arrange the following male reproductive structures of gymnosperms in descending order of their physical hierarchy (macroscopic to microscopic). A. Microsporangium B. Microspore C. 2026Which of the following sets of plants is correctly paired with the nature of its dominant plant body and the status of its vascular tissues? 2026 Full Chapter list All NEET PYQs