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Why do sieve elements require companion cells?
Formative Period
A critical phase in development or history where foundations, characteristics, or habits are formed.
Social Forces
External societal factors that influence individuals' behaviors, beliefs, and attitudes.
Learning Methods
Techniques or strategies used to acquire new knowledge, skills, or behaviors.
Life Span
The maximum duration of life of a species or the period from an individual's birth to their death, often studied to understand developmental stages across different ages.
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