2. To determine population size in a population of immobile organisms such as plants, or for very small and slow-moving organisms, one could use:

lizards have adapted to life in the desert. some desert lizards have toes with spiny scales to them run across the sand without sinking. some use the sand to hide from predators, or to search for small animals that they prey upon.

a- all cells come from pre-existing cells

the answer is c. altitude. hope this ! #brainiac