Fill in the blanks below with the correct word to complete the sentence.
Water is warmed by the sun and
It is then cooled and
Finally, it is brought back to Earth in the form of
DONE
Water and nutrients that are not cycled are stored in a
DONE

The observations of hooke and van leeuwenhoek documenting the existence of microscopic cells formed the basis of what important theory? a. the cell theory stating that all living things are composed of cellsb. the theory of spontaneous generation, which held that life forms could arise spontaneouslyc. the theory of chemotherapy, or use of antimicrobials to destroy pathogenic organismsd. the germ theory of disease and causative agents

What must be true for natural selection to heppen

As a small change in a person's dna can cause a genetic disorder