Which of the following choices is not part of a grain?
a. germ
b. pectin
c. bran
d. husk

The correct answer is B - Pectin.

Pectin is not part of a grain.

A grain is composed of :

1. Bran - outer layer of  a grain and it contains fiber, B-Vitamins and antioxidants.

2. Endosperm - middle largest layer containing mostly carbohydrates and protein  as well as small amounts of vitamin B and minerals.

3.Germ - it is the inner component of the grain and contains antioxidants, phytochemicals, B vitamins and healthy fats.

4. Husk or hull - this is the outer shell or coating of seed and which plays a protective role in protecting the inner contents of the seed.

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explanation:

desert perennials often survive by remaining dormant during dry periods of the year, then springing to life when water becomes available. most annual desert plants germinate only after heavy seasonal rain, then complete their reproductive cycle very quickly.