Answer:
based on a tested hypothesis
Explanation:
Laws are generally <u>based on tested hypotheses</u>.
Theories are first derived from repeatedly tested and proven hypotheses. Scientific laws are derived from theories that have been proven to be true over a wide range of phenomenon. Hence, laws are overwhelmingly proven facts that <u>cannot be changed</u>.
Scientific laws are <u>internally consistent</u>, compatible with evidence, and are <u>testable against a wide range of phenomenon</u>. However, <u>they can be reviewed</u> as more evidences emerge that have not been known before.
Answer:
Severe flooding is caused by atmospheric conditions that lead to heavy rain or the rapid melting of snow and ice.
Explanation:
Answer: Cell differentiation can be defined as a process in which the less specified cell is converted into the more specified cell. The cells at the embryonic stages is less specialized and during the process of development it becomes more specialized and this process is regulated by gene expression. The gene expression involves a specific group of genes which is expressed or suppressed, that decides the function of the cell.
A fertilized egg shows a single cell which is non-specialized that will become complex and will turn into a multicellular organism by cell differentiation.
This is the reason the adult rabbit looks so different from the single fertilized egg.
The shape of a stream channel is usually flowing you could say. They constantly adjust to changes in stream flow
The channel is affected by the movement of rock material. The stream flows down a slope along a defined path. Streams may vary in width from centimeters to kilometers
I hope this helps somewhat
