Who first recognized the cell as the universal unit of life? a. virchow b. van leeuwenhoek c. hooke d. schleiden and schwann

The right option is; d. Schleiden and Schwann

(Theodor) Schwann and (Matthias) Schleiden first recognized the cell as the universal unit of life. In 1839, they developed the cell theory which identifies the cell as the most basic unit of plants and animals. Schwann and Schleiden were able to discover that some organisms are unicellular, while some are multicellular. They also discovered that the nucleus and the cell membrane are part of the features of the cell.

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.