Several new species arise due to adaptive radiation from a single common ancestor. Beaks of various finches are adapted to different surroundings : Several new species arise due to adaptive radiation from a single common ancestor. Beaks of various finches are adapted to different surroundings
Mouth Parts of Insects : Mouth Parts of Insects The mouth parts of all the insects have same basic plan
Got modified to perform different functions
Co-evolution : Co-evolution Two species can influence each other's evolutionary fitness so that different kinds of organisms evolve together in this process
Beneficial interactions like the reproduction and food relation between Yucca plant and Yucca moth encourages population growth and a geographical abundance of both species. : Beneficial interactions like the reproduction and food relation between Yucca plant and Yucca moth encourages population growth and a geographical abundance of both species.
Slide 5 :
Retrogressive evolution ? : Retrogressive evolution ? Degenerative evolution
Slide 7 : Though both have similar climatic conditions their fauna are strikingly different. Penguins in the South pole Polar bears in the north pole.
Why do we find marsupials in Australia alone ? : Why do we find marsupials in Australia alone ?
Again the question arises –Is it due to common descendents and later diversifying into different continents ? : Again the question arises –Is it due to common descendents and later diversifying into different continents ?
Slide 10 : Elephants are found in India and Africa alone (tropics) and not found in other parts of earth. Why ? Is it because of one origin and
then diversifying in two different
continents
Slide 11 :
Slide 12 : Cacti grow in North American deserts and euphorbia grow in African deserts.
Both adapted to hot, dry climate and succulent, spiny flowering plants could grow in any of these continents.
What could be the reason ?
Slide 13 : Probably both just
happened to
evolve separately
on their respective continents. This presentation is brought to you by ….. Bisbio.in
As time passes by… : As time passes by… Which evolution are you taking about ?
Hit at … http://bisbio.inorCall bisbio.in at 09814016083, 09855516083oremail … bisbioin@gmail.com or amanbiswas60@gmail.com : Hit at … http://bisbio.inorCall bisbio.in at 09814016083, 09855516083oremail … bisbioin@gmail.com or amanbiswas60@gmail.com For all your
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Slide 16 : Is evolution still on ?