Home
Class 12
BIOLOGY
In the developmental history of mammalia...

In the developmental history of mammalian heart. It is observed that it passes through a two chambered fish like heart, three chambered frog like heart and finally four chambered stage. To which hypothesis can this above cited statement be approximated?

A

Lamrack's principle

B

Mendelian principle

C

Biogenetic law

D

Hardy Weinberg law

Text Solution

Verified by Experts

The correct Answer is:
C
Biogenetic law or Recaptiulation theory was given by Ernst Haeckel in 1866. It states that ontogeny repeasts phylogeny. Ontogeny is the life history of an organism while phylogeny is the evolutionary history of an organism while organism. This means that an organism repeats its ancestral history during its development.
Promotional Banner

Similar Questions

Explore conceptually related problems

Fishes have two chambered heart.

Which is not a four chambered heart?

Why three chambered heart of frog is not as efficient as the four chambered heart of birds and mammals?

Which one of the following sets of animals share a four chambered heart ?

Identify the correct statements from the below about "Mammals". (1) Presence of mammary glands is the 'unique feature of mammals. (II) Have two pairs of limbs. (III) Have three chambered heart. (IV) External cars or pinnae are present.

Consider the following statements about biomedical technologies: a) During open heart surgery blood is circulated in the heart - lung machine. b) Blockage in coronary arteries is removed by angiography c) Computerised Axial Tomography (CAT) shows detailed internal structure as seen in a section of body d) X - ray provides clear and detailed images of organs like prostate glands and lungs Which two of the above statements are correct

Fill up the blanks in the following paragraph by selecting the correct option The vascular system of frog is well-developed ul("I") type. The blood vascular system involves heart, blood vessels and blood. Heart has 3 chambers, two atria and one ventricle and is covered by a membrane called ul("ii") . A triangular structure called ul("iii") joins the right atrium.

(i) According to theory of chemical evolution the perimitive atmosphere was oxygen (ii) Protista was the ancestral forms of modern bacteria. (iii) Woolly mammoth which lived years ago was available in petrified remains. (iv) Four chambered heart is found in crocodiles.

(i) According to theory of chemical evolution the perimitive atmosphere was oxygen (ii) Protista was the ancestral forms of modern bacteria. (iii) Woolly mammoth which lived years ago was available in petrified remains. (iv) Four chambered heart is found in crocodiles.