Advertisements
Advertisements
Question
What is a connecting link?
Advertisements
Solution
These are fossil forms transitional or intermediate between two groups of organisms. It shows some characters to both the groups. Thus, it indicates the evolutionary line Seymouria (between amphibians and reptiles). e.g., Archaeopteryx (between reptiles and birds).
APPEARS IN
RELATED QUESTIONS
According to de-Vries what is saltation?
Some plants occur in one of the two sizes : tall or dwarf. This characteristic is controlled by one pair of genes. Tallness is dominant to dwarfness. Choose suitable letters for this gene pair.
Match the terms given in column I with those given in column II :
| Column I | Column II |
| (1) Fossil | (a) A famous evolutionist |
| (2) A theory of evolution | (b) Survival of the fittest |
| (3) Probable ancestor of birds | (c) Petrified remains of prehistoric life |
| (4) Charles Darwin | (d) Father of genetics |
| (5) Gregor Mendel | (e) Archaeopteryx |
"Only variations that confer an advantage to an individual organism will survive in a population". Do you agree with this statement? Give reason for your answer.
Scientists believe that all life originated in :
(a) the sea
(b) the soil
(c) the ground
(d) the air
A population of red beetles lives in green bushes in a garden. Once during the process of breeding, a green beetle is produced.
(a) State whether the change in colour of beetle is a process of evolution or not.
(b) Can the new colour of green beetle be passed on to its next generations?
(c) What will be the advantage (if any) of the green colour to the beetle?
(d) State whether the production of green colour involved a change in genetic material or not.
Complete the statement by choosing correct options from below .
Evolution means -- -- -- --.
Multiple choice question.
Gene frequency in a population remain constant due to –
Name any three types of postmating isolating mechanisms.
Which fossil animal is considered as the connecting link between reptiles and birds? Give any one character of each class found in it.
