Concept of Missing Links

Q. Which of the following is a reptilian character in Archaeopteryx as given in the diagram?

1. Toothed beak
2. Wing claw
3. Contour feathers
4. None of the above

Q. Missing links in evolution refer to

1. Fossils that bridge the gap between two adjacent groups of organisms
2. Those transitional species whose fossils have not been discovered in the chain of evolution
3. Both A and B
4. None of the above

Q. The fossil of Archaeopteryx is the missing link between reptiles and birds.

1. True
   
2. False

Q. Archaeopteryx is a transitional fossil between

1. birds and mammals
2. mammals and reptiles
3. reptiles and birds
4. reptiles and amphibians

Q. Development of which trait freed land vertebrates from water

Q.

Ancestors of mammals belong to:

1. Ornithischia

2. Therapsida

3. Chelonia

4. Silusidea

Q. The fossil of Archaeopteryx is the missing link between reptiles and birds.

1. True
   
2. False

Q. Give an example of Connecting Link

Q. A missing link between birds and reptiles

Q. Missing links in evolution refer to

1. fossils that bridge the gap between two adjacent groups of organisms.
2. those transitional species whose fossils have not been discovered in the chain of evolution.
3. the lost species that can never be found.
4. different species that are not related

Q. Heterothallism was discovered in ___________.

1. Mucor
2. Aspergillus
3. Agaricus
4. Albugo

Q. Short/Long answer type questions
What term do you use for the evolutionary history of an organism? List in sequence the four well recognized fossil stages in the evolutionary history of horse.

Q. Archaeopteryx is a connecting link between

1. Birds and mammals
2. Mammals and reptiles
3. Reptiles and birds
4. Reptiles and amphibians

Q. Archaeopteryx is a connecting link between reptiles and birds. Justify the statement by giving two characteristics of each group.

Q. Sauropsids were derived from early reptiles these sauropsids gave rise to:-

1. Mammals
2. Dinosaur and mammals
3. Modern reptiles and birds
4. Pelycosaur

Q. Archaeopteryx is known as missing/connecting link because it is a fossil and has characters between

1. Birds and reptiles
2. Fishes and amphibians
3. Reptiles and mammals
4. Chordates and nonchordates

Q. A reptilian character present in Archaeopteryx is

1. Beak with teeth
2. Absence of pygostyle
3. All the above
4. Distinct digits in wings and claws on its fingers

Q. Archaeopteryx shows origin of

1. Birds from reptiles
2. Mammals from reptiles
3. Reptiles from amphibians
4. Birds from amphibians

Q. Which of the following is a reptilian character in Archaeopteryx as given in the diagram?

1. Toothed beak
2. Winged claw
3. Contour feathers
4. Long tail

Q. Give any two distinctive features of Dryopithecus.

Q. What would the animal Z be?

Q. Which of the following statement is not true of Archaeopteryx?

1. Tail is bony and long
2. Jaws are modified into beak
3. Fore limbs are modified into wings
4. Connecting link between birds and mammals

Q. Mention the general characters of Rhynchocepalia.

Q.

Archeopteryx is a connecting link between:

1. Reptiles and birds

2. Birds and mammals

3. Amphibians and reptiles

4. None of the above

Q. Father of algology is?

1. R.N. Singh
2. M.O.P. Iyenger
3. F.E. Fritsch
4. Linnaeus

Q. What evidence convinced scientists that Archaeopteryx should be classified as a bird rather than a small dinosaur?

1. Scales
2. Toothless, elongated mouth like beak
3. A tail similar to that of modern birds
4. Fused collar bone, indicating flying ability

Q. Archaeopteryx is a connecting link between

1. Birds and mammals
2. Mammals and reptiles
3. Reptiles and birds
4. Reptiles and amphibians

Q. How can you say the lobefin fish were the ancestors of amphibian?

Q. The reptilian character observed in Archaeopteryx

1. Vertebral column extends up to the tail
2. Presence of feathered wings
3. Presence of beak
4. Streamlined body