Answer: "carry capacity" .
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Answer:
they advantages of an increase in size without its limitations
Explanation:
Answer: it is my cute sister
Explanation:
Each sieve tube element is normally associated with one or more nucleated companion cells, to which they are connected by plasnodesmata (channels between the cells). Each companion cell is derived from the same mother cell as its associated sieve tube member. Sieve tube members have no cell nucleus, ribosomes, or vacues. Thus, they depend on companion cells to provide proteins, ATP, and signalling molecules
