2355 0328

What is the association between tropomyosin and troponin molecules in resting striated muscle fibers?

• Troponin holds the tropomyosin in place on the actin.

• Tropomyosin holds the troponin in place on the actin.

• Troponin holds the tropomyosin in place on the myosin.

• Tropomyosin holds the troponin in place on the myosin.

In the human diet, there are no "essential" __.

• Amino acids

• Carbohydrates

• Minerals

• Fatty acids

• Vitamins

The myofibrils consist of both thin filaments made of actin and thick filaments composed of __.

• Chitin

• Troponin

• Acetylcholine

• Myosin

• Tropomyosin

What hormone stimulates milk production in mammals?

Some of the most dramatic evidence for evolution has come from human agriculture. One of the most artificially selected crop plants is __, which is very different than the parent teosinte plant.

• Pea

• Tomato

• Corn

• Asparagus

• Potato