(C) The presence of feathers in dinosaurs (which were reptiles) and their presence in modern birds suggests an evolutionary link. Since dinosaurs exis

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birds have evolved from reptiles

(C) The presence of feathers in dinosaurs (which were reptiles) and their presence in modern birds suggests an evolutionary link. Since dinosaurs existed long before birds,it indicates that birds evolved from feathered reptiles (dinosaurs). This is a classic example of evolutionary adaptation where a trait (feathers) originally evolved for a different purpose (likely insulation or display) in reptiles and was later co-opted for flight in birds.

Class 10 Science Heredity Mix Examples - Heredity and Evolution

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Some dinosaurs had feathers although they could not fly,but birds have feathers that help them to fly. In the context of evolution,this means that:

A
reptiles have evolved from birds
B
there is no evolutionary connection between reptiles and birds
C
birds have evolved from reptiles
D
feathers are homologous structures in both the organisms

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What are the three ways which can produce variant genotypes in the environment?

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$(a)$ Why traits such as intelligence and knowledge cannot be passed on to the next generation?
$(b)$ How can we say that birds are closely related to reptiles and have evolved from them?

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In a beetle population, the number of green beetles is more than blue and red beetles. Give a reason behind this situation.

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An organ like a wing in birds is an advantage to an organism. Did they appear in different stages or were they formed due to a single sudden change?

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$(i)$ Name the scientist who proposed the theory of evolution of species by natural selection.
$(ii)$ What conclusion did Mendel draw from his experiments regarding traits?
$(iii)$ Arrange the following organisms in the order of their evolutionary complexity: Cockroach,Mango tree,Gorilla,Fish.

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Some dinosaurs had feathers although they could not fly,but birds have feathers that help them to fly. In the context of evolution,this means that:

Similar Questions

What are the three ways which can produce variant genotypes in the environment?

$(a)$ Why traits such as intelligence and knowledge cannot be passed on to the next generation?$(b)$ How can we say that birds are closely related to reptiles and have evolved from them?

In a beetle population, the number of green beetles is more than blue and red beetles. Give a reason behind this situation.

An organ like a wing in birds is an advantage to an organism. Did they appear in different stages or were they formed due to a single sudden change?

$(i)$ Name the scientist who proposed the theory of evolution of species by natural selection.$(ii)$ What conclusion did Mendel draw from his experiments regarding traits?$(iii)$ Arrange the following organisms in the order of their evolutionary complexity: Cockroach,Mango tree,Gorilla,Fish.

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$(a)$ Why traits such as intelligence and knowledge cannot be passed on to the next generation?
$(b)$ How can we say that birds are closely related to reptiles and have evolved from them?

$(i)$ Name the scientist who proposed the theory of evolution of species by natural selection.
$(ii)$ What conclusion did Mendel draw from his experiments regarding traits?
$(iii)$ Arrange the following organisms in the order of their evolutionary complexity: Cockroach,Mango tree,Gorilla,Fish.