What did jean-baptiste lamarck believe about traits such as large muscles that are acquired during one's lifetime?
they are acted on by natural selection.
they can be passed on to offspring.
they are shared equally by all offspring.
they are the result of a change of alleles.

Option B, They can be passed on to offspring

Explanation:

As per the theory of Jean-Baptiste Lamarck, any individual that adopts certain physical changes within itself due to changing environmental conditions then it is sure that the newly oriented  physical changes will be passed on the offspring. These physical changes include - enlarging of an organ due to its frequent use, development of any new organ etc.

He called this theory as "Theory of Inheritance of Acquired Characteristics"

Hence, option B is correct

try using substitution:

x + y - 6 = x - y. (i'm not giving you the exact answer). since 0 = x - y, then sub 0 in the equation with x - y. combine your like terms, and then use inverse operations, and you'll have your answer.

: -)

"a.) well–developed vascular system."