The phrase "exert a cost" is correct and usable in written English.
This phrase is used to refer to the amount of money or energy that is necessary to do or achieve something. For example, "Developing a website will exert a cost, but in the long run it will be beneficial to the business."
First, Canta [4] does not explicitly analyze the healthcare payment for a public hospital and assumes that a public hospital does not exert a cost reduction effort.
Since they exert a cost y on the host, there is erosion of the host resource.
This, in combination with sleep/wake cycle pressures, substance misuse, and psychosocial factors such as more competition and time pressure, social isolation and less intimate engagement with the family unit, may exert a cost on mental health.
In species where social groups derive from single once-mated mothers, competition will exert a cost on full siblings, to which matrigenes and patrigenes are equally related, and no imprinting is expected.
In our model, we assume that a public hospital also exerts a cost reduction effort, much like a private hospital, and analyze the effect of the healthcare payment policy on the optimal contract.
One possibility is that it is sexual differentiation, rather than reproduction per se, that exerts a cost on life span [ 10].
Researchers initially believed that the mutations causing drug resistance would exert a "fitness cost," rendering those strains too weak to be transmitted (8, 9 ).
For example, pollinators often select for larger corolla size, but such increases exert a large cost in terms of water loss in dry environments (Galen 2000; Lambrecht and Dawson 2007).
Intervertebral disc degeneration (IDD) is considered to be one of the strongly associated causes of lower back pain and related diseases of the spine, which exert a high cost on society [ 1, 2].
The virulent parasite multiplies rapidly in the predator host and therefore enjoys greater success (v) and exerts a higher cost (x) on the predator host.
But those traits exert a heavy price".
