The phrase "activities demand" is correct and usable in written English.
It can be used to refer to the requirements or expectations associated with certain activities, often in a professional or academic context.
Example: "The activities demand a high level of collaboration and communication among team members."
Alternatives: "requirements of activities" or "expectations of activities".
The more your various activities demand, the more your body thinks you need and scales up production accordingly.
The hope seems to be that, as their activities demand more capital, riskier investment banking will be reduced or spun out of banking groups.
Society is currently facing the ageing of the population which, together with the increasing engagement of both men and women in out of home work activities, demand new solutions for taking care of elderly people.
Because the remote maintenance activities demand for a high degree of parallelism, automation and cooperation between various RHEs, the development of a software environment (OSAExE) that had the indicated characteristics has been necessary.
Self-management activities demand a great effort, which many people find difficult to incorporate into their daily life [ 12, 13].
The rhizosphere is a good example of a dynamic environment, where fluctuations in its biological and chemical activities demand an appropriate response from its inhabitants.
This, of course, does not mean that the people did not visit relatives when circumstances permitted or when certain religious and ceremonial activities demanded.
One day, his boss, irritated at his off-the-job business activities, demanded, "Are you working for Borden's, or are you working for Don Townsend?" "I guess I'm working for Don Townsend," came the reply.
These activities demanded a smooth prose style, and Ibn al-Muqaffaʿ has therefore rightly been regarded as the inaugurator of what is called "secretarial literature" (that produced by secretaries in the official chancelleries).
Finally the cognitive activities demanded by Douglas's ethical prescriptions for scientists seem beyond the capacities of individual scientists.
Depending on what kind of model we are dealing with, building and manipulating a model amounts to different activities demanding a different methodology.
