sel tumbuhan menjalani proses x untuk membentuk salur xilem. namakan proses x. huraikan bagaimana salur xilem mengalami pengkhususan untuk mengangkut air dan garam mineral .

Multicellular organisms use cell division, mitosis, for growth and the maintenance and repair of cells and tissues. single-celled organisms may use cell division as their method of reproduction. regardless of the reason for mitosis, the process ensures genetic continuity. what is the step in the cell cycle that ensure genetic continuity?

The tubes transporting minerals and water upward are called ?

What do isotopes of uranium have the same number of? what do they have a different number of? a) same number of protons; different number of electrons b) same number of protons; different number of neutrons c) same number of electrons; different number of protons d) same number of neutrons; different number of protons