Advertisements
Advertisements
Question
Complete the following diagram:
Advertisements
Solution
APPEARS IN
RELATED QUESTIONS
Give two examples of vestigial organs in human beings and plants.
Study the following statements:-
I. Wings of birds and wings of bats are homologous organs.
II. Wings of birds and wings of insects are modified forelimbs.
III. Wings of birds and wings of insects are analogous organs.
IV. Wings of birds and forelimbs of horse are homologous organs.
The correct statements are
(A) I and II
(B) II and III
(C) III and IV
(D) I and IV
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
Can the wing of a butterfly and the wing of a bat be considered homologous organs? Why or why not?
Find out from newspapers and popular science articles any new fossil discoveries or controversies about evolution.
Explain the evolution of giraffe's neck according to Lamarck's theory of evolution.
Human tailbone is a vestigial organ. Explain.
The forelimbs of a frog, a bird and a man show the same basic design (or basic structure) of bones. What name is given to such organs?
Name two animals having homologous organs and two having analogous organs. Name these organs.
Some dinosaurs had feathers although they could not fly birds have feathers that help them to fly. In the context of evolution, this means that ______
You have potato, carrot, radish, sweet potato, tomato and ginger bought from the market in your jute bag. Identify two vegetables to represent the correct homologous structures.
(A) Potato and tomato
(B) Carrot and tomato
(C) Potato and sweet potato
(D) Carrot and radish
What do we call the degenerated or partially developed useless organs in living organisms? Enlist such organs in human body? How the same organs are useful in other animals?
Write short notes based upon the information known to you.
Embryology
Answer the following question.
Wisdom teeth : Vestigial organs :: Lungfish : ....................
“Appearance of melanised moths post-industrialisation in England is a classic example of evolution by natural selection.” Explain.
The most common types of fossils are ------------------------.
Define phylogeny.
What are homologous structures?
Long answer question.
Would you consider wings of butterfly and bat as homologous or analogous and why?
Find an odd one out.
What is carbon dating?
Explain any five types of evidence that support the theory of evolution.
Select vestigial organs from the following.
Select the CORRECT set of homologous organs.
Where is carbon dating used?
Evolution has exhibited a greater stability of molecular structure when compared with morphological structures. Comment on the statement and justify your opinion.
Basic principles of embryonic development were pronounced by:
The presence of gill slits, in the embryos of all vertebrates, supports the theory of ______.
Flippers of Penguins and Dolphins are examples 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 ______.
Appearance of antibiotic-resistant bacteria is an example of ______.
Fossils are generally found in ______.
How do we compute the age of a living tree?
Give an example for convergent evolution and identify the features towards which they are converging.
The evolutionary story of moths in England during industrialisation reveals, that 'evolution is apparently reversible'. Clarify this statement.
Evolutionary convergence is the development of a ______.
Complete the following conceptual picture:
