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(d) human species and whales have a common ancestor
(c) Wings of an insect and wings of a bat
(d) artificial selection
(b) Geographic barrier → genetic divergence → reproductive isolation
(c) When the organisms comprising two populations of a species can no longer interbreed, the flow of genetic material between them stops.
(c) reproductive isolation
(b) small population living in an isolated niche
(b) a new gene pool is formed.
(d) Tall plants with yellow seeds. dwarf plants with yellow seeds, tall plants with green seeds and dwarf plants with green seeds.
(c) Natural selection is a direct process in which one variant will be favoured in a given environment over another.
The structural similarities between the flippers of whales and the arms of humans are used to show that the
(d) human species and whales have a common ancestor
(d) human species and whales have a common ancestor
See lessWhich of the following pairs of organs is analogous to each other?
(c) Wings of an insect and wings of a bat
(c) Wings of an insect and wings of a bat
See lessWild cabbage has evolved into new varieties like cabbage, broccoli and cauliflower by
(d) artificial selection
(d) artificial selection
See lessThe sequence of events in geographic speciation is most likely to be:
(b) Geographic barrier → genetic divergence → reproductive isolation
(b) Geographic barrier → genetic divergence → reproductive isolation
See lessWhy is the advent of reproductive isolation important from an evolutionary point of view?
(c) When the organisms comprising two populations of a species can no longer interbreed, the flow of genetic material between them stops.
(c) When the organisms comprising two populations of a species can no longer interbreed, the flow of genetic material between them stops.
See lessThe basis of differentiating two groups of more or less similar organisms as separate species is
(c) reproductive isolation
(c) reproductive isolation
See lessSpeciation is most likely to occur in a species with a number of populations when there is a
(b) small population living in an isolated niche
(b) small population living in an isolated niche
See lessSpeciation is the evolutionary process by which
(b) a new gene pool is formed.
(b) a new gene pool is formed.
See lessA cross between tall pea plants with yellow seeds (Tt yy) and dwarf plants with green seeds (tt yy), progeny will be:
(d) Tall plants with yellow seeds. dwarf plants with yellow seeds, tall plants with green seeds and dwarf plants with green seeds.
(d) Tall plants with yellow seeds. dwarf plants with yellow seeds, tall plants with green seeds and dwarf plants with green seeds.
See lessThe variation of natural selection operates due to random mutations. What does this imply about natural selection?
(c) Natural selection is a direct process in which one variant will be favoured in a given environment over another.
(c) Natural selection is a direct process in which one variant will be favoured in a given environment over another.
See less