Nurturing Life Sciences
#Id: 10580
#Id: 10664
#XL - R Botany
Root Apical meristem
root apical meristem is a thimble-like root cap, which protects the delicate apical meristem as the root pushes through the abrasive soil
#Id: 9798
Pfr, in turn, can be converted back to Pr by far-red light known as photoreversibility
#Id: 7920
#XL - Q Biochemistry
#Id: 9719
#XL - T Zoology
#Id: 7759
Some elements exist naturally as molecules. For example, hydrogen and oxygen exist as two-atom molecules.