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

What can be inferred about life-forms from the presence of fossils in various sedimentary layers?

Options

  1. AThey all existed at the same time
  2. BCertain life-forms are restricted to specific geological time-spans
  3. CLife-forms have not changed over time
  4. DFossils are not useful for studying evolution

Correct answer

B. Certain life-forms are restricted to specific geological time-spans

Step-by-step solution

Fossils are described as the remains of the hard parts of life-forms found in rocks.Rocks form sediments and a cross-section of earth's crust indicates the arrangement of sediments one over the other during the long history of earth. Different-aged rock sediments contain fossils of different life-forms who probably died during the formation of the particular sediment. Fossils in various layers indicate that certain life-forms are restricted to specific geological periods, showing changes over time. A study of fossi

Practice Evolution on Quantrex Academy →

More from Evolution

Evolution of human appears parallel to the progressive development of brain and language skills. As such, the evolution of individual species in the sequence of their appearance is 2026Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R . Assertion A : Forelimbs of human and bats are homologous. Reason R : Forelim 2026Which of the following is not evidence for evolution ? 2026Sweet potato and potato represent a certain type of evolution. Select the correct combination of terms to explain the evolution. 2025Coacervates were discovered by 2019Which one is the oldest in following? 2019Following are the two statements regarding the origin of life. I. The earliest organisms that appeared on the earth were non-green and presumably an aerobes. II. The first autotrop 2017Variation in gene frequencies within population can occur by chance rather than by natural selection. This is reffered to as 2017 Full Evolution list All NEET PYQs