Alternatively, covers may be applied to such large holes; Add screws to make it impossible to open the enclosure without screwdriver.
A scenario outlined by Elżanowski in 2002 suggested that Archaeopteryx used its wings mainly to escape predators by glides punctuated with shallow downstrokes to reach successively higher perches, and alternatively, to cover longer distances (mainly) by gliding down from cliffs or treetops.
Alternatively, Perspex cover slips can be used for the collection of cells [ 12].
Alternatively, simply cover with pretty paper or tissue/crepe paper balls.
Alternatively, simply cover the free end of the tubing and lift it higher than the level of gas in the tank.
But if it comes to be used (as it too often is) to mean any charge uncomfortably near the bone, or if alternatively it covers any kind of demagoguery, falsehood and trickery, then the very concept is rendered empty and meaningless.
Alternatively, you can cover the top of the spawner and the nearby areas with slabs to improve the efficiency of the spawner, as the bl level would be reduced.
Alternatively a plastic cover slip (Ted Pella) can be used or a glass cover slip can be coated with a thin layer of Sylgard™.
