2006-09-08 04:19:57 · 7 answers · asked by Mary 20165 1 in Science & Mathematics ➔ Botany
They do not need a internal skeletal structure to support branches as they are strong enough to support themselves.
2006-09-08 04:25:36 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Trees have mechanical tissue like sclerenchyma which gives support.The vascular tissue like secondary xylem gives support to the branches.
2006-09-09 13:02:03 · answer #2 · answered by krishna m 2 · 0⤊ 0⤋
Plant cells have cell walls, that is an internal skelital structure.
2006-09-08 11:25:44 · answer #3 · answered by Lady 5 · 1⤊ 0⤋
Plant cells have cell walls that give their cells a rigid shape. So their "skeleton" is all of their cells, unlike animals who have specialized skeleton cells which their bodies grow over.
2006-09-08 12:36:03 · answer #4 · answered by el_camuyano 3 · 0⤊ 0⤋
Cause wood is strong and it bends in long lengths.
2006-09-11 02:18:49 · answer #5 · answered by troylfry 3 · 0⤊ 0⤋
because trees aren't soft and gooey inside like humans, you fool.
2006-09-08 11:26:03 · answer #6 · answered by Anonymous · 0⤊ 0⤋
who told u that there is no int str.like our skeleton plants hav certain tissues that provide mechanical support like PARENCHYMA ,COLLENCHYMA & SCHLERENCHYMA.i hop u understood
2006-09-09 10:20:10 · answer #7 · answered by chinnu 2 · 0⤊ 0⤋