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प्रश्न
The decaying process of C-14 occurs continuously in dead organisms only.
पर्याय
True
False
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उत्तर
True
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संबंधित प्रश्न
What are vestigial organs?
Differentiate between homology and analogy. Give one example of each.
Write the similarity between the wing of a butterfly and the wing of a bat. What do you infer from the above with reference to evolution?
“Two areas of study namely 'evolution' and 'classification' are interlinked'. Justify this statement.
State a reason for the increased population of dark coloured moths coinciding with the loss of lichens (on tree barks) during industrialization period in England.
Which of the following is a correct set of homologous organs?
(a) Forelimbs of frog, bird and lizard
(b) Spine of cactus and thorn of bougainvillea
(c) Wings of bat and wings of butterfly
(d) Wings of a bird and wings of a bat
An example of homologous organs is
Explain the terms analogous and homologous organs with examples.
Explain the evolution of giraffe's neck according to Lamarck's theory of evolution.
What are homologous organs?
Select and write analogous structures from the list given below :
1) Wings of butterfly and birds
2) Vertebrate hearts
3) Tendrils of Bougainvillea and Cucurbita
4) Tubers of sweet potato and potato
Read the following statement and justify same in your own words with the help of suitable example.
There is evidences of fatal science among chordates.
Observe the picture and answer the following questions.
A) Which evidence of evolution is shown in the picture?
B) What can be proven with this proof?
C) Give one more example of evidence of evolution
The most common types of fossils are ------------------------.
Explain any three molecular (genetic) evidences in favour of organic evolution.
Short answer question.
Give the significance of fossils.
Long answer question.
Would you consider wings of butterfly and bat as homologous or analogous and why?
Name the parts shown in the diagram.
Human jaw
Which evidence of evolution is shown in the given picture? Explain the importance of this evidence.
Explain any five types of evidence that support the theory of evolution.
Write the answers to the questions by observing the figure below.
 |
 |
 |
| (a) | (b) | (c) |
- Write the name of the animal ‘(a)’ in the figure.
- Write the name of the animal ‘(b)’ in the figure.
- Write the name of the animal ‘(c)’ in the figure.
- Which evolutionary evidence is illustrated by this figure?
- Write the definition of that evidence for evolution.
Biogenetic law states that ______.
The degenerated and non-functional organs found in an organism are called ______.
Homologous organs and vestigial organs are examples of ______ type of evidence in evolution.
Where is carbon dating used?
Why do all the gametes formed in human females have an X chromosome?
Tendons and ligaments are examples of ______.
The presence of gill slits, in the embryos of all vertebrates, supports the theory of ______.
Organs having similar functions but different origin and development are known as:
Animal husbandry and plant breeding programmes are the examples of ______.
The bones of forelimbs of whale, bat, cheetah and man are similar in structure, because ______.
Did aquatic life forms get fossilised? If, yes where do we come across such fossils?
Give an example for convergent evolution and identify the features towards which they are converging.
Complete the following chart:
Give a scientific reason.
Morphological evidences suggest that dog, sheep and wolf have a common origin.
What is the function of the appendix of our digestive system?
Define the term:
Homologous organs
