Question

a blacksmith develops strong arm muscles from years of hammering metal. according to jean - baptiste lamarck’s theory of acquired traits, what would be expected in his children?
they would be born with stronger than average arm muscles.
they would need to become blacksmiths to develop strong muscles.
they would have no change in their muscles compared to other children.
they would be skilled at hammering without needing to learn.

Explanation:

Lamarck's theory of acquired traits states that traits acquired during an organism's lifetime can be passed to offspring. The blacksmith's strong arm muscles from hammering are acquired, so per Lamarck, his children would inherit this, being born with stronger than average arm muscles. Other options: B implies the trait is not inherited (needs to become blacksmith to develop, wrong); C says no muscle change (contradicts Lamarck); D is about skill, not muscle inheritance (wrong).

Answer:

A. They would be born with stronger than average arm muscles.