The structural variability of man is mainly toward motion; woman's variational tendency is not toward motion, but toward reproduction.
The extremevariational tendency of man expresses itself in a larger percentage of genius, insanity, and idiocy; woman remains more nearly normal.
In the course of development every variational tendency in mothers to dote on their children was rewarded by the survival of these children, and the consequent survival of the stock, owing to better nutrition, protection, and training.
All variations which are demonstrably useful can be similarly dealt with if their origin is explained by variational tendencies.
It is just cases of this last kind, however, which are best fitted for exposing the improbability and insufficiency of the assumption of a variational tendency as a distinct directive power.
Economic inquiry would belong under that category if the human response to the forces of the environment were instinctive and variational only, including nothing in the way of a technology.
They indicate the conditions of survival to which any innovation is subject, supposing the innovation to have taken place, not the conditions of variational growth.
If the minus variations have no selective value, how can the upper limit of the variationalfield be constantly displaced downwards, as actually happens?
In the theory of selection the engine-driver is represented by utility, for with utility rests the decision {12} as to what particular variational track shall be travelled.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "variational" in a variety of sentences. We hope that you will now be able to make sentences using this word.
