Description : The wings of a bird and the wings of an insect are (a) phylogenetic structures and represent divergent evolution (b) homologous structures and represent convergent evolution (c) homologous structures and represent divergent evolution (d) analogous structures and represent convergent evolution.
Last Answer : (d) analogous structures and represent convergent evolution.
Description : Assertion :- Analogous structures are a result of convergent evolution. Reason :- Different strutures evolving for the same function and hence having
Last Answer : Assertion :- Analogous structures are a result of convergent evolution. Reason :- Different strutures ... . If both Assertion & Reason are false.
Description : The eye of octopus and eye of cat show different patterns of structure, yet they perform similar function. This is an example of (a) analogous organs that have evolved due to convergent ... evolved due to convergent evolution (d) homologous organs that have evolved due to divergent evolution.
Last Answer : (a) analogous organs that have evolved due to convergent evolution
Description : `{:("Convergent evolution","Divergent evolution"),((1)"Bones of forelimbs of vertebrates","Wings of butterfly and birds"),((2)"Thorns of Bougainvillia
Last Answer : `{:("Convergent evolution","Divergent evolution"),((1)"Bones of forelimbs of vertebrates","Wings ... Cucurbita","Wings of butterflies and birds"):}`
Description : Which one of the following options gives one correct example each of convergent evolution and divergent evolution? Convergent Divergent evolution evolution (a) Eyes of octopus Bones of forelimbs and ... birds (d) Thorns of Bougainvillea Eyes of octopus and tendrils of and mammals Cucurbita
Last Answer : (a) Eyes of octopus Bones of forelimbs and mammals of vertebrates
Description : Forelimbs of cat, lizard used in walking; forelimbs of whale used in swimming and forelimbs of bats used in flying are an example of (a) analogous organs (b) adaptive radiation (c) homologous organs (d) convergent evolution.
Last Answer : (c) homologous organs
Description : The process by which organisms with different evolutionary history evolve similar phenotypic adaptations in response to a common environmental challenge, is called (a) non-random evolution (b) adaptive radiation (c) natural selection (d) convergent evolution.
Last Answer : (d) convergent evolution
Description : Flippers of penguins and dolphins are examples of (a) adaptive radiation (b) convergent evolution (c) industrial melanism (d) natural selection.
Last Answer : evolution
Description : Evolution of different species in a given area starting from a point and spreading to other geographical areas is known as (1) Divergent evolution (2) Adaptive radiation (3) Natural selection (4) Migration
Last Answer : Adaptive radiation
Description : Can you Compare Convergent Plate Boundary and Divergent Plate Boundary?
Last Answer : Okay this is going to be long :XIN GENERAL...Divergent Plate Movement (plates move away from each other)-Continental and continental, oceanic and oceanic-Constructive Plate BoundaryConvergent Plate ... upin these areas, but there is little volcanic activity and littlecrustal material is destroyed.
Description : What is the difference between divergent plate boundaries and convergent plate boundaries?
Last Answer : The difference is you must be smart to figure it out
Description : Under what condition a convergent divergent nozzle required ?
Last Answer : When pressure ratio is greater than critical pressure ratio.
Description : There are three types of plate boundaries i.e Divergent, Convergent and------ A. Normal B. Transform (Answer) C. Complex D. Plain
Last Answer : B. Transform (Answer)
Description : Shallow earthquakes, less than 20 km deep are associated with a. Convergent plate boundaries b. Divergent plate boundaries c. Transform plate boundaries d. All of the Above
Last Answer : d. All of the Above
Description : The length of the divergent cone in a Venturimeter is __________ that of the convergent cone. (A) Equal to (B) Double (C) Three to four times (D) Five to six times
Last Answer : Answer: Option C
Description : The divergent portion of a Venturimeter is made longer than convergent portion in order to (A) Avoid the tendency of breaking away the stream of liquid (B) To minimise frictional losses (C) Both (A) and (B) (D) None of these
Description : A nozzle is generally made of (A) Cylindrical shape (B) Convergent shape (C) Divergent shape (D) Convergent-divergent shape
Last Answer : Answer: Option B
Description : Which of the following statement is wrong? (A) A flow whose streamline is represented by a curve is called two dimensional flow. (B) The total energy of a liquid particle is the sum of potential energy, ... (D) A pitot tube is used to measure the velocity of flow at the required point in a pipe.
Description : New Zealand is an example of (A) Convergent plate boundary (B) Divergent plate boundary (C) Conservative plate boundary (D) Both convergent and conservative plate boundaries
Last Answer : (D) Both convergent and conservative plate boundaries
Description : Analogous structures are a result of
Last Answer : Analogous structures are a result of A. Divergent evolution B. Convergent evolution C. Shared ancestry D. Stabilizing selection
Description : Does the occurrence of diversity of animals on earth suggest their diverse ancestry also? Discuss this point in the light of evolution. -Biology
Last Answer : Discuss this point in the light of evolution. Since animals show a vast diversity in their structures, they probably have diverse ancestry. ... Thus, occurrence of diversity of animals on earth suggest their diverse ancestry also.
Description : Assertion :- Tasmanian wolf and Placental wolf are the good example of convergent evolution. Reason :- More than one adaptive radiation apperared to h
Last Answer : Assertion :- Tasmanian wolf and Placental wolf are the good example of convergent evolution. Reason :- ... D. If both Assertion & Reason are false.
Description : Convergent evolution is illustrated by
Last Answer : Convergent evolution is illustrated by A. Rat and dog B. Bacterium and protozoan C. Starfish and cuttle fish D. Dogfish and whale
Description : Convergent evolution of two species is associated with `:`
Last Answer : Convergent evolution of two species is associated with `:` A. analogous organs B. recent common ancestor C. Homologous organs D. different habitat
Description : The similarity of bone structure in the forelimbs of many vertebrates is an example of (a) homology (b) analogy (c) convergent evolution (d) adaptive radiation.
Last Answer : (a) homology
Description : The similarity of bone structure in the forelimbs of many vertebrates is an example of (1) Homology (2) Analogy (3) Convergent evolution (4) Adaptive radiation
Last Answer : (1) Homology
Description : what structures are created at each type of convergent boundaries?
Last Answer : Convergent boundaries are where two tectonic plates hit eachother. This can cause earthquakes, but can also createmountains.
Description : Do hedgehogs and echidnas show an example of divergent evolution?
Last Answer : Hedgehogs and echidnas show convergent evolution. Despite being far apart, they ended up looking very similar. Like sharks and dolphins.
Description : Among the following sets of examples for divergent evolution, select the incorrect option. (a) Forelimbs of man, bat and cheetah (b) Heart of bat, man and cheetah (c) Brain of bat, man and cheetah (d) Eye of octopus, bat and man
Last Answer : (d) Eye of octopus, bat and man
Description : Among the following sets of examples for divergent evolution, select the incorrect option : (1) Forelimbs of man, bat and cheetah (2) Heart of bat, man and cheetah (3) Brain of bat, man and cheetah (4) Eye of octopus, bat and man
Last Answer : (4) Eye of octopus, bat and man
Description : Explain with examples how the following are evidences in favour of evolution in organisms. (i) Homologous organs (ii) Analogous organs (iii) Fossils -Biology
Last Answer : i) Forelimb of human and bird are homologous organs. They have same structural design and developmental origin but they have different functions and appearance. Homologous organs help us to understand that ... and a long tail. This fossil provides a clue that birds have evolved from reptiles.
Description : What is meant by analogous organs? Taking a suitable example, explain how they support the theory of Organic Evolution -Biology
Last Answer : Analogous organs are those organs which I have different basic structural design and developmental origin but have similar appearance and perform similar functions. Example: The wings of birds and bats look ... flying but their origins are not common. So, birds and bats are not closely related.
Description : Thorn of Bougainvillea and tendril of Cucurbita are examples of (a) vestigial organs (b) retrogressive evolution (c) analogous organs (d) homologous organs.
Last Answer : (d) homologous organs.
Description : How can the endoskeleton of echinoderms be characterized in comparison to analogous structures present in vertebrates, arthropods and molluscs?
Last Answer : The echinoderm skeleton is internal, i.e., it is an endoskeleton. It is made of calcium carbonate (calcareous). Vertebrates also have internal skeleton made of bones and cartilages. Arthropods ... of chitin, a chitinous exoskeleton. Some molluscs present a calcareous shell that works as exoskeleton.
Description : Which one of the following are analogous structures? (a) Wings of bat and wings of pigeon (b) Gills of prawn and lungs of man (c) Thorns of Bougainvillea and tendrils of Cucurbita (d) Flippers of dolphin and legs of horse
Last Answer : (a) Wings of bat and wings of pigeon
Description : What type of bonding helps in stabilising the -helix structure of proteins ?
Last Answer : Ans. In a -helix structure, polypeptide chain of amino acids coils as a right handed screw because of the formation of all possible Hydrogen bonds between — NH group at each amino residue and > C = 0 group of adjacent turn of helix.
Description : Why stabilising resistor in REF or residual E/F scheme?
Last Answer : Required against CT saturation under heavy through fault currents.
Description : Which of the following is the least likely to be involved in stabilising the three-dimensional folding of most proteins (a) Hydrogen bonds (b) Electrostatic interaction (c) Hydrophobic interaction (d) Ester bonds
Last Answer : (d) Ester bonds
Description : Force ( including rolling resistance friction ) that acts upon the stabilising surfaces such landslide and sole of bottom are called a) Useful soil resistance b) Parasitic force d) Draft of implement. d) Pull of implement
Last Answer : b) Parasitic force
Description : What are the three structures shared by every chordate that characterize the group?
Last Answer : All beings of the phylum Chordata have branchial clefts in the pharynx (in some species present only in the embryo), notochord (substituted by the spinal column in vertebrates) and dorsal neural tube. Image Diversity: branchial clefts notochord dorsal neural tube
Description : which structures were required for the evolution of the ferns and gymnosperms? -General Knowledge
Last Answer : Megaphylls and vascular tissue were required for the evolution of the ferns and gymnosperms.
Description : Can adaptation and natural selection be considered acts separate and distinct from the process of evolution?
Last Answer : answer: to what end? An individual's adaptation has either a positive or neutral effect on evolution, by either allowing it to breed more that it otherwise would without the adaptation, or ... that adaptation to sufficiently alter the species' population, that is the very definition of evolution.
Description : Assertion :- Branching descent and Natural selection are the two key concepits of Darwinian theory of evolution. Reason :- Darwinism is able to explai
Last Answer : Assertion :- Branching descent and Natural selection are the two key concepits of Darwinian theory of ... D. If both Assertion & Reason are false.
Description : Assertion: Population ecology is a link of ecology to population genetics and evolution. Reason: Natural selection operates at population level to evo
Last Answer : Assertion: Population ecology is a link of ecology to population genetics and evolution. Reason: Natural ... and Reason are false, then mark (4).
Description : Which is part of the theory of evolution by natural selection?
Last Answer : Animals that survive cannot pass along their adaptation
Description : What's the difference between evolution and natural selection?
Last Answer : Evolution simply means change occurring over time, especially a gradual change. You can, for example, speak of an evolution in architectural styles, or in music.The evolution that biologists talk about is ... is a process of slow change in a group of organisms, natural selection is the means by
Description : How is natural selection related to evolution?
Last Answer : Natural selection is the driving force for evolution. Evolution was not first proposed by Charles Darwin. There had been many observations found pointing to the idea long before Charles Darwin. His ... each species. Second, there must be a high enough Death Rate to prevent the variations wh
Description : Theory of evolution through natural selection was given by
Last Answer : Ans. C.Darwin and A.R.Wallace (1858)
Description : Which of the following is not a part of the Darwin's theory of evolution? (1) Natural selection (2) Struggle for existence (3) Survival of the fittest (4) Inheritance of acquired characters
Last Answer : (4) Inheritance of acquired characters Explanation: The inheritance of acquired characteristics is a hypothesis that physiological changes acquired over the life of an organism such as the ... theory of adaptation equated with the evolutionary theory of French naturalist Jean-Baptiste Lamarck.'