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प्रश्न
State the connecting links between Peripatus with Annelida and Arthopoda.
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उत्तर
Connecting links between Peripatus and Annelida:
- Segmental nephridia
- Thin cuticle
- Parapodia-like appendages
Connecting links between Peripatus and Arthropoda:
- Trachea
- Open circulation
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संबंधित प्रश्न
Given below is the list of vegetables available in the market. Select from these the two vegetables having homologous structures:
Potato, sweet potato, ginger, radish, tomato, carrot, okra (Lady’s finger)
(A) Potato and sweet potato
(B) Radish and carrot
(C) Okra and sweet potato
(D) Potato and tomato
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 pairs of two vegetables represent the correct homologous structures?
(A) Sweet potato and potato
(B) Sweet potato and tomato
(C) Carrot and potato
(D) Radish and carrot
Differentiate between analogy and homology giving one example each of plant and animal respectively.
Four students A, B, C and D reported the following set of organs to be homologous. Who is correct ?
(A) Wings of a bat and a butterfly
(B) Wings of a pigeon and a bat
(C) Wings of a pigeon and a butterfly
(D) Forelimbs of cow, a duck and a lizard
Find out from newspapers and popular science articles any new fossil discoveries or controversies about evolution.
Name any two temporary embryonic structures in vertebrates which provide evidence for evolution.
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 ______
What do you mean by vestigial structures? Name four vestigial organs found in man.
The decaying process of C-14 occurs continuously in dead organisms only.
Select the CORRECT match.
The fossil remains of Archaeopteryx is a connecting link between ______
Define vestigial organs.
Homologous organs are:
How do we compute the age of a rock?
You have studied the story of Peppermoths in England. Had the industries been removed, what impact could it have had on the moth population? Discuss.
Find the odd one out:
Industrial melanism in England after 1850 is an excellent example of Natural selection. Explain how?
Complete the following conceptual picture:
