Which statement accurately describes the relationship between mass and weight

The correct statement is (b).

Explanation:

The amount of matter contained in an object is called its mass while the weight of an object is the gravitational force exerted on the earth due to its mass.

The mass and the weight of an object can be related by this relation as :

W = m g

g is acceleration due to gravity

i.e. the weight of an object depends on the location of the object.

So, the statement that describes the relationship between the mass and the weight is option (b) " an object with twice the mass of another object will weigh twice as much ".

"do a testcross with a homozygous recessive plant."

hydrogen is a compound or a single element and a element is a pure substence that cannot be separated into simpler subtances

clorine is a compound its a chemical substance that forms when two or more different elements combine

so both hydrogen and clorine are compounds