Paleontological Evidence

Q. Embryological support of evolution was proposed by ___________.

1. Charles Darwin
2. Oparin and Haldane
3. Alfred Wallace
4. Ernst Heckel

Q.

Define fossil. Explain importance of fossils as proof of evolution.

Q.

Which of the following were first evolved organisms?

1. Chemoautotrophs

2. Heterotrophs

3. Cyanobacteria

4. Bacteria

Q. Half-life period of $C^{14}$ is :

1. $5000years$
2. $5\times {10}^{4}years$
3. $50years$
4. $500years$

Q.

Does geographical isolation of individuals of a species lead to the formation of a new species? Provide a suitable explanation.

Q. Observe the given diagram and answer the following question. Which of the following is not the ancestor of Mammals?

1. Early reptiles
2. Thecodonts
3. Synapsids
4. Therapsids

Q. Serpentology: Snakes :: Palaeontology: ?

1. Fossils
2. Birds
3. Reptiles
4. Fishes

Q.

Why Cycas is called a living fossil?

Q.

Fossils are generally found in:

1. Metamorphic rocks

2. Any type of rock

3. Sedimentary rocks

4. Igneous rocks

Q.

Define the term ‘characteristics’.

Q. Which is commonly known as ‘Living fossil’?

1. Pinus
2. None of these
3. Ginkgo biloba
4. Fern

Q.

Explain the importance of fossils in deciding evolutionary relationship

Q. Which of the following statements about fossils is NOT true?

1. Fossil records indicate the existence of transitional species.
2. Fossils are clues to how Earth has been changing over millions of years.
3. The fossil record is now complete.
4. Fossils could be bones or imprints of ancient organisms preserved in rock.

Q.

Giraffe has long neck because:

1. Environment is suitable for its long neck

2. They have become long due to their need from past

3. Their ancestors were long necked

4. Due to evolution and adaptation

Q. Paleontological evidences for evolution refer to

1. Development of embryo
2. Homologous organs
3. Fossils
4. Analogous organs

Q. Homology in anatomical parts
(A) show evolutionary adaptations
(B) perform similar functions
(C) undergo similar genetic changes
(D) common embryological origin

Choose the correct options:

1. A and B
2. A and D
3. C and B
4. All of the above

Q. Which scientist provided the evidence for the theory of chemical evolution?

1. Louis Pasteur
2. S.L. Miller
3. Haldane
4. Oparin

Q. The biological concept of species is mainly based on

1. morphological features
2. morphology and method of reproduction
3. method of reproduction only
4. reproductive isolation

Q. The branch of science that deals with the study of fossils is called .

1. morphology
2. physiology
3. paleontology
4. evolution

Q.

What is studying dinosaurs called?

Q. Age of fossils in the past was generally determined by radiocarbon method and other methods involving radioactive elements found in the rocks. More precise methods, which were used recently and led to the revision of the evolutionary periods for different groups of organisms includes

1. Study of the conditions of fossilization
2. Study of carbohydrates/proteins in rocks
3. Electron spin resonance (ESR) and fossil DNA
4. Study of carbohydrates/proteins in fossils

Q. Write the probable differences in eating habits of Homo habilis and Homo erectus. [1]

Q. Darwin’s finches represent one of the best examples of

1. Biological evidences of evolution
2. Industrial melanism
3. Adaptive radiation
4. Convergent evolution

Q. The term living fossil refers to a

1. living organism showing some very primitive characters
2. life like fossil well preserved in amber
3. living animal which is about to the fossilized
4. fossil formed from a living animal

Q. Which of the following is an example of ‘living fossil’?

1. Pinus
2. Ginkgo
3. Riccia
4. Gnetum

Q.

If the fossil of an organism is found in the deeper layers of the Earth, then we can predict that:

1. The extinction of organisms has occurred recently.

2. The extinction of organisms has occurred thousands of years ago.

3. The fossil position in the layers of earth is not related to its time of extinction.

4. Time of extinction cannot be determined.

Q.

One of the important consequences of geographical isolation is?

1. No change in the isolated fauna

2. Preventing Speciation

3. Random creation of new species

4. Speciation through reproductive isolation

Q. Consider the following statement and choose the correct option.

“Darwin finches differ from each other on the basis of ___i___ which represents ____ii____”.

1. i - feather, ii - adaptive radiation
2. i - beak, ii - adaptive radiation
3. i - feather, ii - convergent evolution
4. i - beak, ii - convergent evolution

Q. Rearrange Ramapithecus, Australopithecus and Homo habilis in the order of their evolution on the Earth. Comment on their evolutionary characteristics. [3]

Q. Which of the following statements is correct?

1. All the individuals of a species have exactly the same life spans
2. No organism may have a life span of several hundred years
3. Life span of an organism is the time period from its birth to its natural death
4. Smaller organisms always have shorter life span and vice versa