Following are the examples of some homologous and analogous organs. (a) Tendrils of Cucurbita and thorn of Bougainvillea. Br (b) Forelimbs of mammals. Br (c) Flipper of Penguin and Dolphin. Br (d) Wings of insects and wings of birds, Choose the correct option.

How many of the following are examples of homologus structures in plant : (a) Eyes of octapus and mammal (b) Potato and sweet potato (c) Forelimbs of whale, bat cheetah and human (d) Vertebrate heart (e) Thorn of bougainvillea and tendril of cucurbita (f) Potato and corrot (g) Potato and radish

Identify the following pairs of Homologous or Analogous organs: i) Sweet potato and potato ii) Eye of octopus and eye of mammals iii) Thorns of Bougainvillea and tendrils of Cucurbits. iv) Fore limbs of Bat and Whale.

Identify the examples of homologous structures from the following- (i) Vertebrate hearts (ii) Thorns in Bougainvillea and tendrils of Cucurbita. (iii) Food storage-organs in sweet potato and potato.

Identify the examples of homologous structures from the following- (i) Vertebrate hearts (ii) Thorns in Bougainvillea and tendrils of Cucurbita. (iii) Food storage-organs in sweet potato and potato.

Which of the following statements are true (A) The entire process of involuntary response to a peripheral nervous stimulation is called reflex action. (B)Information regarding changes in the environment is received by the CNS through the sensory organs which are processed and analysed. (C) Reflex action occurs without conscious effort (D) Reflex action requires the involvement of a part of the CNS (E) Signals from sensory organs goes to spinal cord via ventral root. Choose the correct options from given below:-

Read the following statements regarding evolution : A. The Therapsids were synapsids who gava rise to mammals . B. The seed ferns were the common ancestors of all gymnosperms and angiosperms. C. The seed siltation was given by Darwin for single-step large mutation. D. The work of Thomas Malthus on pollution influenced Darwin . Choose the correct option based on the accuracy of these statements.

Choose the pairs of organs that are a result of convergent evolution i. Wings of butterflies and wings of birds. ii. Flippers of penguins and flippers of dolphins iii. Eyes of octopus and eyes of mammals. iv. Thorns of Bougainvillea and tendrils of Cucurbita. v. Sweet potato and potato. vi. Vertebrate hearts and vertebrate brains

Which of the following statement is correct ? (A) Thorn of Bougainvillea and tendrill of Cucubita show analogy (B) Homologous organs are pentadactyl organ of man cheetah and whale , they are modified forelimbs (C) Archaepteryx is modern bird of Mesozoic era (D) Sweet potato and potato are the example of analogy

Which one of the following options gives one correct example each of convergent evolution and divergent evolution ? {:("Convergent evolution","Divergent evolution"),("(1)Thorns of Bougainvillea and tendrils of Cucurbita","Wings of butterflies and birds"),("(2)Bones of forelimbs of vertebrates ","Wings of butterflies and birds"),("(3)Thorns of Bougainvillea and tendrils of Cucurbita","Eyes of octopus and mammals"),("(4)Eyes of octopus and mammals","Bones of forelimbs of vertebrates"):}

Read the following features of certain organisms. Br (a) Metameric segmentation, br (b) Presence of haemocoel, br (c) Exhibits metamorphosis, br (d) Presence of tracheal system,Which of the following organisms exhibit above mentioned characteristics?