Differentiate among the types of muscle contractions. 1  Isotonic contractions generate force by changing the length of the muscle and can be concentric contractions or eccentric contractions.  A concentric contraction causes muscles to shorten, thereby generating force.
A 1993 Upper Deck Derek Jeter Rookie card number 449 has a book value of about $15.00 in near/mint -mint condition. Professionally graded cards will sell for more. Condition is important. Common flaws with baseball cards include: rounded edges, creases, off centered, and faded color.
Baseball Cards and Football Cards. With an extraordinary career, a David Ortiz rookie card is a hot item. The 1997 Flair Showcase David Ortiz rookie card, graded BGS 9.5 sells for $60 and the 1997 Fleer David Ortiz rookie card #512, graded BGS 9.5 for around $50. Big Pappi has a lot of cards worth buying.