 | Charles Darwin - 1998 - 486 頁
...then, be thought improbable, seeing that variations useful to man have undoubtedly occurred, that odier variations useful in some way to each being in the great and complex battle of life, should sometimes occur in the course of thousands of generations? If such do occur, can we... | |
 | Owen Goldin, Patricia Kilroe - 1997 - 276 頁
...it can act most efficiently. ... Can it ... be thought improbable, seeing that variations useful to man have undoubtedly occurred, that other variations...way to each being in the great and complex battle of life, should occur in the course of many successive generations? If such do occur, can we doubt... | |
 | Brian L. Silver - 2000 - 553 頁
...passage from Chapter 4 of his book: Can it, then, be thought improbable, seeing that variations useful to man have undoubtedly occurred, that other variations...way to each being in the great and complex battle of life, should sometimes occur in the course of thousands of generations? If such do occur, can we... | |
 | Marcel Weber - 1998 - 352 頁
...physical conditions of life. Can it, then, be thought improbable, seeing that variations useful to man have undoubtedly occurred, that other variations...way to each being in the great and complex battle of life, should sometimes occur in the course of thousands of generations? If such do occur, can we... | |
 | Michael Ruse - 1999 - 366 頁
...hereditary tendency is. . . .Can it, then, be thought improbable, seeing that variations useful to man have undoubtedly occurred, that other variations...way to each being in the great and complex battle of life, should sometimes occur in the course of thousands of generations? If such do occur, can we... | |
 | John Offer - 2000 - 696 頁
...physical conditions of life. Can it, then, be thought improbable, seeing that variations useful to man have undoubtedly occurred, that other variations...way to each being in the great and complex battle of life should sometimes occur in the course of thousands of generations? If such do occur, can we... | |
 | Michael Ruse - 2001 - 362 頁
...physical conditions of life. Can it, then, be thought improbable, seeing that variations useful to man have undoubtedly occurred, that other variations...way to each being in the great and complex battle of life, should sometimes occur in the course of thousands of generations? If such do occur, can we... | |
 | Michael Ruse - 2004 - 260 頁
...physical conditions of life. Can it, then, be thought improbable, seeing that variations useful to man have undoubtedly occurred, that other variations...way to each being in the great and complex battle of life, should sometimes occur in the course of thousands of generations? If such do occur, can we... | |
 | Mirabotalib Kazemie - 2001 - 116 頁
...as a consequence, each generation will be slightly different from the last. He believed further that variations useful in some way to each being in the great and complex battle of life are preserved while those harmful are destroyed. 88 To explain how useful variations occur... | |
 | T.F Glick, Miguel Angel Puig-Samper, R. Ruiz - 2001 - 308 頁
...justifying analogy. He writes: "Can it then, be thought improbable, seeing that variations useful to man have undoubtedly occurred, that other variations useful in some way to each to each being in the great and complex battle of life, should sometimes occur in the course of thousands... | |
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Can it, then, be thought improbable, seeing that variations useful to man have undoubtedly occurred, that other variations useful in some way to each being in the great and complex battle of life, should sometimes occur in the course of thousands of generations... 
