Advertisements
Advertisements
प्रश्न
Write a short note based on the information known to you.
Embryology
Advertisements
उत्तर
- Embryology is the study of the formation and development of the embryo and fetus.
- Embryology is used as one of the pieces of evidence of evolution.
- Comparative studies of embryos in vertebrates show that there is considerable similarity at the initial stages, but this similarity gradually decreases.
- This similarity in embryonic development reflects the common origin of organisms.
APPEARS IN
संबंधित प्रश्न
Which one of the following pairs of vegetables is an example of homologous structures?
(A) Potato and sweet potato
(B) Carrot and radish
(C) Carrot and tomato
(D) Tomato and radish
An example of homologous organs is
Enlist any four sequential evolutionary names of human ancestors.
The organs P and Q of two animals have different structures but similar functions. On the other hand, the two organs R and S of two other animals have the same basic structure but different functions.
(a) What are the organs like P and Q known as?
(b) Name the organs like P and Q. Also name the animals which have such organs.
(c) What are the organs like R and S called?
(d) Name the organs like R and S. Also name the animals which have such organs.
“Appearance of melanised moths post-industrialisation in England is a classic example of evolution by natural selection.” Explain.
Choose the correct option of the following question:
Wings of Insect and Birds are examples of :
Very short answer question:
What is vestigeal organ?
Find an odd one out.
Give scientific reason.
Duck-billed platypus shows relationship with mammals.
Complete the flowchart.
Define the evidence of evolution shown in the figure.
Explain any five types of evidence that support the theory of evolution.
Select the CORRECT match.
Where is carbon dating used?
Tendons and ligaments are examples of ______.
The bones of forelimbs of whale, bat, cheetah and man are similar in structure, because ______.
Analogous organs arise due to ______.
Complete the following diagram:
Give a scientific reason.
Morphological evidences suggest that dog, sheep and wolf have a common origin.
Industrial melanism was highlighted by ______.
