Examlex
_____ are cells that lay the framework for new phloem and xylem in vascular plants. Prior to the differentiation of these cells, their precursors transported auxin out of immature leaves.
Cohort Study
A type of observational study that follows a group of people over time to determine how certain factors affect the rates of a given outcome.
Physically Active
Engaging in bodily movements that require energy expenditure and are beneficial to physical health, such as exercising, walking, or participating in sports.
Absolute Risk
The probability of a specific event occurring in a specific period among a certain group of people.
Risk Difference
The difference in the probability of an event occurring between two comparison groups in epidemiological studies.
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