What do similarities in the early embryonic development of different vertebrate species suggest?
Convergent evolution
Common ancestry
Analogous structures
Independent origins
Related Questions
Which of the follows have not left any evidence of organic evolution?
Mules
Horses
Donkeys
Archaeopteryx
Which of the following statements are incorrect. I. Microbial experiment shows that when the pre-existing advantagoeus mutations are selected they will result in the observation of new phenotypes. Over few generations, this would results in speciation, II. Neanderthal fossils represents a human relative, III. In 1938, a fish caught in South Africa happened to be a coelacanth (lobe fins) which was thought to be extinct. These animals evolved into the first living amphibian on both land and water, IV. Lichens can be used as water pollution indicators, V. Alfred Wallace, a naturalist, who worked in Malay Archepalago (present Indonesia) had also came to the similar conclusion on natural selection as reached by Darwin. The correct option is
I and III
II and IV
I, II and III
III, IV and V
Which of the follows have not left any evidence of organic evolution?
Mule
Archaeopteryx
Horse
Eohippus
The presence of homologous structures, like the pentadactyl limb in vertebrates, suggests a common ancestor. However, some scientists argue against this, citing instances where similar structures arise independently. Which of the following BEST refutes this counter-argument and strengthens the evolutionary link implied by homologous structures?
Homologous structures always have identical functions across different species.
Analogous structures, like insect and bird wings, demonstrate convergent evolution and thus invalidate homology.
The fossil record consistently shows a gradual transition in homologous structures over time in all lineages.
Homologous structures often share similar developmental pathways and genetic underpinnings, even when their functions diverge significantly.
