QUESTION: Fix punctuation: But all these human tendencies and phenomena are as yet still embryonic
ANS: But all these human tendencies and phenomena are as yet still embryonic.

QUESTION: Fix punctuation: Laser distance meter Yes calculates distance to the target for precisely focused images and displays distance on screen
ANS: Laser distance meter Yes, calculates distance to the target for precisely focused images and displays distance on screen

QUESTION: Fix punctuation: Mountain unicycling can be done on the same terrain as a mountain bike However unicycles typically lack a gear system preventing the user from coasting or reaching high speeds
ANS: Mountain unicycling can be done on the same terrain as a mountain bike. However, unicycles typically lack a gear system, preventing the user from coasting or reaching high speeds.

QUESTION: Fix punctuation: S3500 1949 with complete steel driving cab and rounded fenders
ANS:
S3500, 1949, with complete steel driving cab and rounded fenders.