Camouflage: helps it hide from predators trying to eat. Speed: helps it run away from predators
The answer is; The genes must share the same control element
When multiple genes are expressly coordinately, this is referred to as synexpression. Such genes are expressed in coordination either because they code for protein subunits of a complex protein or their gene products are required in stoichiometric amounts.
I think the correct answer would be strong gravity. The factor that allows the earth to hold onto water would be the strong gravitational pull of the earth. In fact, it is what holds everything onto earth not only water. Hope this answers the question.
Uranium-238 is found only in igneous or volcanic rocks. They can date a very ancient fossil also but carbon cannot date and ancient fossil. Trees are not very ancient. Carbon-14 can be used to measure only fossils of recent age.