The phrase "activities are different" is correct and usable in written English.
You can use it to highlight the distinction between various activities in a discussion or comparison.
Example: "In our study, we found that the activities are different across age groups, affecting their engagement levels."
Alternatives: "activities vary" or "activities differ".
Although the structural difference between these compounds is small, the mechanisms underlying their activities are different because the phospholipid aldehydes are chemically reactive (Schiff base formation with proteins and aminophospholipids) whereas the carboxy-phospholipids can only physically interact with other biomolecules [4 6].
Specific activities are different between independent preparations of refolded proteins.
A: Walk-in activities are different from normal classes in their "drop-in" nature.
Additionally, we also find that the factors influencing the importance attributed to cooperation activities are different from the ones behind the decision to cooperate.
Its artefacts and activities are different to those of conventional software engineering, and the nature and drivers of productivity for formal methods are not yet understood.
The thought that aptitude at acquiring skills at practical activities is different from aptitude at acquiring knowledge of truths affects our most fundamental interactions with others.
Youth also perceived that the robotics activities were different from those in school, reporting that the robotics camp was more interesting and involved more hands-on activities.
The care activities were different with regard to the gender of the caregiver.
and Ph.D. research projects focused on the fundamental analysis of diamond properties, her daily activities were different.
The lipase activities were different by using these two substrates because lipases in the organ extracts probably have different specificities towards these substrates (Gillmor et al. 1997).
