1 Collegedata.com says, âThe College Board reports that the average cost of room and board in 2014â2015 ranged from $9,804 at four-year public schools to $11,188 at private schools,â but doesnât break down whatâs room and whatâs board.2  A USA Today article quotes the same figures. Collegedata.com says, âThe College Board reports that the average cost of room and board in 2014â2015 ranged from $9,804 at four-year public schools to $11,188 at private schools,â but doesnât break down whatâs room and whatâs board. 2  A USA Today article quotes the same figures.
B. Leaves is a modification into the spine in a cactus plant. they are modified leaves. Being narrow and sharp not only helps defend the plant but also the reduced surface area helps limit water loss. [ [ ] ]. Expert answered| patmarone |Points 5452|.
They are not spines like those on cactus because crown of thorns aren't cactus, but succulents. There are no areoles around the base of the thorns which would identify them as cactus. Cactus spines are modified leaves. The spines on crown of thorns are called stipular spines and grow at the base of leaves.Water them and then let them dry out quite a bit before watering again. Give them a bright window if you would like them to flower.here are no areoles around the base of the thorns which would identify them as cactus. Cactus spines are modified leaves. The spines on crown of thorns are called stipular spines and grow at the base of leaves. Water them and then let them dry out quite a bit before watering again.