Exhibit 31-1 MATCH a Term or Structure from the List Below to Below

question 2

Multiple Choice

Exhibit 31-1
MATCH a term or structure from the list below to each of the following definitions or names. Place the letter of the term or structure in the blank to the left of the definition or name which it describes.

-____ Isotactic propylene

• A)BF₃ + H₂O
• B)elastomer
• C)chain-growth polymer
• D)AL(CH₂CH₃)₃ + TiCl₄
• G)thermoplastic
• H)homopolymer
• I)plasticizers
• J)thermosetting resins
• K)copolymers
• L)step-growth polymer
• M)Grubb's catalyst
• N)metallacycle

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Definitions:

Blood Pressure

The force exerted by circulating blood on the walls of blood vessels, often measured for diagnostic purposes.

Stress

A physical or psychological response to internal or external pressures, often resulting in physical, mental, or emotional strain or tension.

Flexibility

The quality of bending easily without breaking, referring to the range of movement in a joint or series of joints.

Intervertebral Disks

The cartilage pads that sit between the vertebrae in the spine, acting as shock absorbers and allowing for flexibility.