When can a scientific theory be changed? a) when new technology is developed b) after another scientist does an experiment c) never; once it is a law or theory it is impossible to change d) after many experiments and much more data had been collected

The correct answer will be option-D.

Explanation:

A scientific theory is a well-substantiated idea which explains any natural phenomenon occurring in nature.

The theory is a result of the continuous experiments which tries to explain any scientific hypothesis. The scientific theory in a scientific method can evolve as they can be improved, modified and rejected due to more information collected with time.

Thus, option-D is the correct answer.

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.

the backbone of the dna and rna compound is sugar phosphate.