Cross-sectional study
(Science: epidemiology) a study in which the presence or absence of disease or other health-related variables are determined in each member of the study population or in a representative sample at one particular time. This contrasts with longitudinal studies which are followed over a period of time.
Synonym: horizontal study.
Cross-sectional study (Science: epidemiology) a study in which the presence or absence of disease or other health-related variables are determined in each member of the study population or in a representative sample at one particular time. This contrasts with longitudinal studies which are followed over a period of time. Synonym: horizontal study...
Regulation of Biological Systems tutorials are focused on the modulation of biological systems from cell to population l..
With regard to the population size of a species and what factors may affect them, two factors have been defined. They ar..
Plants protect themselves by releasing hydrogen peroxide to fight against fungal invasion. Another way is by secreting c..
Upon fertilization, a zygote forms and develops into an embryo. This tutorial elaborates on the growth and development f..
Learn about community patterns and the ecological factors influencing these patterns. Revisit some of the ecosystems you..
For human species to obviate extinction, reproductive mature adults should be producing viable offspring in order to con..
