Which phrase defines a law? a possible explanation or answer to a scientific question that is based on prior knowledge or research and is testable a statement of fact that is generally accepted to be true and universal because it has always been observed to be true. a hypothesis or group of related hypotheses that can be accepted as true based on repeated experimentation with similar results

Correct B). A statement of fact that is generally accepted to be true and universal because it has always been observed to be true.

A scientific law may be defined as the something that appears to be true and is universally applicable. Scientific laws do not explain why the observed events happen, but it only states that the event occurs in the same way over and over.

Example of scientific law is a law of gravity. Gravity is always there and it always works in the same manner.

Other examples include newton's law of motion, which states how the things move.

the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands

a- all cells come from pre-existing cells