Discovery of lobefins is considered very significant by evolution… - Vidyadip

Question

Discovery of lobefins is considered very significant by evolutionary biologists. Explain.

✓

Answer

Lobefins are the fish with stout and strong fins, that could move on land and go back to water, they must have lived about 350 mya and were thought to be extinct.
In 1938, a Coelacanth (lobefin) was caught in South Africa.
Though no specimens of these are left with us, they evolved into the first amphibians.
These were the ancestors of modern day frogs and salamanders.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "Answer the following questions." from Evolution→Evolution — all question types→BIOLOGY STD 12 Science question papers→Maharashtra Board STD 12 Science question papers→Maharashtra Board question paper generator→

Similar questions

Why is pedigree analysis done in the study of human genetics? State the conclusions that can be drawn from it.

What is the advantage of bubbling air into the sparged stirred-tank bioreactors?
Name the two main processes involed in down stream processing.

Name the causative organism of 'typhoid' and draw its diagram.

?	Herbivores
Primary producer	?
?	Man, Lion
Secondary consumer	?

$12 mol CH _3 COOH \rightarrow 12 CH +12 CO _2$
(Acetic acid) (Methane)
The above equation is related to methanogenesis, a stage of biogas production, Explain the other two stages.

What are the different techniques by which foreign DNA can be transferred to host cell without using a vector?

What are the characteristic features of a true–breeding line?

Explain how do the following act as contraceptives:

CuT
‘Saheli’

Name the various green house gases? Give their percentage contribution to global warming.

Which chromosome carries the mutated gene causing β–thalassemia? What are the problems caused by the mutation?