In the case of every species, many different checks, acting at different periods of life, and during different seasons or years, probably come into play; some one check or some few being generally the most potent, but all concurring in determining the average number or even the existence of the species.
Bears on natural selection -- The term used in a wide sense -- Geometrical powers of increase -- Rapid increase of naturalised animals and plants -- Nature of the checks to increase -- Competition universal -- Effects of climate -- Protection from the number of individuals -- Complex relations of all animals and plants throughout nature -- Struggle for life most severe between individuals and varieties of the same species; often severe between species of the same genus -- The relation of organism to organism the most important of all relations.
Hence we may confidently assert, that all plants and animals are tending to increase at a geometrical ratio, that all would most rapidly stock every station in which they could any how exist, and that the geometrical tendency to increase must be checked by destruction at some period of life.
What checks the natural tendency of each species to increase in number is most obscure.
And he would receive the check when the story was published.
Each cuff was a check, and Martin went over them anxiously, in a fever of expectation, but they were all blanks.
Now and again he reached out and added a bundle of checks to the flying miscellany that soared through the roof and out of sight in a tremendous circle.
She spoke of the check
. She had imagined no harm in accepting Wingrave's invitation to tea.
He laid my check
on the table with a low bow, and left me.
I'll give you a check
for THAT pair, but no commission."
She looked at him, and checked herself again; resolute to make her terrible confession, yet still hesitating how to begin.
He sprung from his seat and checked her, holding her with both his hands, raising her as he rose himself.