8.The advantage of light microscope over electrons microscope: Ait doesn't require electric relay

Bit is easier to move from place to place

Cit is so expensive

DA and B

may be D is the right answer because

electrons microscope it not easy to handle and so expensive but light microscope is easy to handle and less experience

the answer for this question would be d. glaciers

as the gila monster consumes the eggs or young of the desert cottontail and gambel's quail, thus its main food supply is only accessible for a restricted time duration every year. however, for this, the gila monsters exhibit three adaptations, which elevate their survival rate in the desert condition.  

first, is that they possess huge bodies, and can consume greater concentrations of food during a small period. secondly, they require to feed infrequently as they can accumulate fat in their tails. ultimately, their rate of metabolism is very low, so that they can burn their reservoirs of fat gradually.