Insects live under rocks. Hope this helps!!
Microtubules provide a rigid structure, or cytoskeleton
Mercury, due to it's low gravity it would not be able to hold a very strong atmosphere.
B
The other problems are not as easily solved; whereas, data collection over long periods of time is possible and was already done in the past, eg temperature and weather patterns. Therefore, this is the easiest limitation to overcome.
Process by which the internal structure of a mineral is altered by the addition or removal of elements. Change in phase (mineral type) and composition are due to the action of chemical agents. Chemical weathering is dependent on available surface for reaction temperature and presence of chemically active fluids.
