Reyana09 – Activity – Forum

Reyana09

@reyana09

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Joined: Nov 16, 2021
Last seen: Dec 29, 2021

Topics: 0 / Replies: 2505

Answer to: Which of the following statements is correct? (a) Australopithecus has large brain around 900 c.c. (b) Neanderthal man lived in East Africa and the fruits.

Correct answer: (c) Homo erectus had brain capacity 900 c.c.

4 years ago

Forum

Evolution

Answer to: The extinct human who lived 1,00,000 to 40,000 years ago, in East and Central Asia, used hides to protect their bodies and had brain capacity of 1400 c.c. were

Correct answer: (b) Neanderthal man

4 years ago

Forum

Evolution

Answer to: Which of following represents correct order of evolution? (a) Amoeba → Leucosolenia → Hydra → Ascaris (b) Leucosolenia → Hydra → Amoeba → Ascaris

Correct answer: (a) Amoeba → Leucosolenia → Hydra → Ascaris

4 years ago

Forum

Evolution

Answer to: The different forms of interbreeding species that live in different geographical regions are called

Correct answer: (c) allopatric species

4 years ago

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Evolution

Answer to: Stabilising selection favours (a) both extreme forms of a trait (b) intermediate forms of a trait

Correct answer: (b) intermediate forms of a trait

4 years ago

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Evolution

Answer to: The factors involved in the formation of new species are

Correct answer: (d) isolation and variation

4 years ago

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Evolution

Answer to: Which of the following is most important for speciation?

Correct answer: (b) Reproductive isolation

4 years ago

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Evolution

Answer to: Genetic drift operates only in (a) larger populations (b) Mendelian populations (c) island populations (d) smaller populations

Correct answer: (d) smaller populations

4 years ago

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Evolution

Answer to: The Hardy-Weinberg principle cannot operate if (a) a population does not migrate for a long time to a new habitat. (b) frequent mutations occur in the population

Correct answer: (b) frequent mutations occur in the population.

4 years ago

Forum

Evolution

Answer to: Hardy-Weinberg equilibrium is known to be affected by gene flow, genetic drift mutation, genetic recombination and

Correct answer: (d) natural selection

4 years ago

Forum

Evolution

Answer to: At a particular locus, frequency of allele A is 0.6 and that of allele a is 0.4. What would be the frequency of heterozygotes in a random mating population at equilibrium?

Correct answer: (d) 0.48

4 years ago

Forum

Evolution

Answer to: Single step large mutation leading to speciation is also called

Correct answer: (b) saltation

4 years ago

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Evolution

Answer to: Which one of the following scientist’s name is correctly matched with the theory put forth by him?

Correct answer: (c) Weismann – Theory of continuity of germplasm

4 years ago

Forum

Evolution

Answer to: “Human population grows in geometric ratio while food materials increase in arithmetic proportion”. It is a statement from

Correct answer: (d) Malthus

4 years ago

Forum

Evolution

Answer to: Which of the following evidence does not favour the Lamarckian concept of inheritance of acquired characters?

Correct answer: (b) Melanisation in peppered moth

4 years ago

Forum

Evolution

Answer to: According to Lamarckism, long necked giraffes evolved because

Correct answer: (d) of stretching of necks over many generations by short necked ones.

4 years ago

Forum

Evolution

Answer to: Which of the following are the two key concepts of Darwinian theory of evolution?

Correct answer: (d) Branching descent and natural selection

4 years ago

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Evolution

Answer to: By the statement ‘survival of the fittest’, Darwin meant that

Correct answer: (d) the species most adaptable to changes survives.

4 years ago

Forum

Evolution

Answer to: Which one is not a vestigial organ? (a) Wings of kiwi (b) Coccyx in man (c) Pelvic girdle of python (d) Flipper of seal

Correct answer: (d) Flipper of seal

4 years ago

Forum

Evolution

Answer to: Which is not a vestigial organ in man? (a) Nictitating membrane (b) Tail vertebrae (c) Vermiform appendix (d) Nails

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