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According to the evolutionary theory, formation of a new species is generally due toNCERT - Science Exemplar
The presence of which of the following types of organs in two organisms indicates that they are derived from the same ancestor?Lakhmir Singh & Manjit Kaur- Biology
The farmers have been cultivating a food plant X for over two thousand years and have produced as many as five entirely different looking vegetables A, B, C, D and E from it.
(a) What could the plant X be?
(b) What are A, B, C, D and E?
(c) What is the process of evolution involved in this example known as?Lakhmir Singh & Manjit Kaur- Biology
Choose the one term from the following which includes the other three: broccoli, wildcabbage, cauliflower, cabbage.Lakhmir Singh & Manjit Kaur- Biology
Scientists believe that all life originated in:Lakhmir Singh & Manjit Kaur- Biology
According to scientists, aves have evolved from:Lakhmir Singh & Manjit Kaur- Biology
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:Lakhmir Singh & Manjit Kaur- Biology
Name the famous book written by Charles Robert Darwin.Lakhmir Singh & Manjit Kaur- Biology
The forelimbs of a frog, a bird and a man show the same basic design (or basic structure) of bones. What name is given to such organs?Lakhmir Singh & Manjit Kaur- Biology
The human species has genetic roots in:Lakhmir Singh & Manjit Kaur- Biology