Ascientific law is something we can use to make a specific, concrete prediction. for example, the law of gravitation states that masses will attract each other, and you will find that this is always the case. however, it can also be used to make concrete statements about the properties of an object in the right conditions. for example, if a material were found that was not attracted to other objects with masses, we could say that a) the material is charged. b) the material has no mass. c) the material must be floating. d) the material has very little mass.

Option B

The gravitational force can be defined as the force that attracts two objects that have mass and radius.

Two objects having masses are attracted towards each other and it never pushes them apart. The whole universe is attracting the objects with masses and this is the reason that the objects do not fall and stays in the universe.

The law of gravitation does not applies to the objects that no mass or negligible mass.

the answer to the blank provided is “an autosomal gene that is required for the expression of genes on the x chromosome”.

testis-determining factor, abbreviated as td, which is more popularly known as sex-determining region y or sry protein, is a dna-binding protein or  gene-regulatory protein/transcription factor, encoded by the  sry gene. it is the gene responsible for the initiation of male gender determination in humans.