The evolution of the eye is a complex process that has occurred independently in different lineages. Which of the following statements regarding eye evolution is most accurate?
All eyes share a single, common evolutionary origin.
The vertebrate eye and the cephalopod eye are homologous structures.
The eye evolved only once and then diversified through simple modifications.
The eye exhibits a range of complexity across different taxa, reflecting different stages of evolutionary development.
Related Questions
Which of the following is the LEAST likely explanation for the relatively rapid diversification of mammals following the Cretaceous-Paleogene extinction event?
Release from competition with dinosaurs
Release from predation by dinosaurs and other large reptiles
Adaptive radiation into newly available ecological niches
Increased mutation rates in mammals
Which group is evolutionary modern?
Gymnosperms
Grasses
Pteridophytes
Algae
Age of gymnosperm is
Cenozoic era
Mesozoic era
Palaeozoic era
Proterozoic era
Which of the following statements are correct? I. Bird originated 150 million years ago, II. Mammals originated 200 million years ago, III. Multicellular organisms 1 billion years ago. The correct combination is
I and II
II and III
I and III
I, II and III
Read the statements w.r.t dinosaurs and choose the correct option.
Statement I : About 85 mya, the dinosaurs suddenly disappeared from the earth.
Statement II : Tyrannosaurus rex was about 20 feet in height and had huge fearsome dagger like teeth.
Both statements are correct
Both statements are incorrect
Statement I is correct but statement II is incorrect
Statement I is incorrect but statement II is correct
Arrange the periods of Palaeozoic era in ascending order in a geological time scale.
Cambrian –Ordovician –Silurian –Devonian –Carboniferous -Permian
Cambrian – Devonian – Ordovician – Silurian –Carboniferous -Permian
Cambrian –Ordovician – Devonian – Silurian –Carboniferous -Permian
Silurian – Devonian – Cambrian – Ordovician – Permian - Carboniferous
Which of the following is not a correct pair?
Mesozoic era - Age of mammals
Origin of species - Charles Darwin
Study of fossil – Palaeontology
Mutation theory – Hugo de Vries
In which of the following era first mammal like reptile originated?
Permian period
Triassic period
Jurassic period
Tertiary period
A change in the genetic makeup of a population over time is called:
Mutation
Adaptation
Evolution
Natural selection
The first mammals were like …A… . Their fossils are small sized. Mammals were …B… and protected their unborn young inside the mother’s body. Choose the correct option for A and B to complete the given NCERT statement
A-shrews. B-viviparous
A-monkeys, B-viviparous
A-monkeys, B-oviparious
A-shrews, B-oviparious
