What are the food sources of Vitamin C? Why the Vitamin C is important for the iron absortion?

Please answer the following questions:

1.- Please name the gastrointestinal responses to dietary fiber, depending on the segment of the digestive tract involved.

2.- What are the effects of the fiber ingestion on:

a) Diabetes mellitus

b) Diverticulosis.

3.- What are the food sources of Vitamin C? Why the Vitamin C is important for the iron absortion?

4.- What is Intrinsic Factor? What are the food sources of Vitamin B12 ?

Please study Seedless plants, and answer the following questions:
1.- What is Phloem?
2.- What is Lignin?
3.- What is Rhizoid ?
4.- Because of the numerous characteristics that they share, plants are thought to have evolved from ancient forms of __________________.
5.- The _______________________ are vascular plants that reproduce using seeds.
6.- The gamete-producing stage in the life cycle of a plant is _________________________.
7.- A type of branching in which the branches or veins always branch into two more or less equal parts is ______________
1.- What is an Anther? _____________________
2.-What is a Cotyledon? ___________________
3.- The major difference between gymnosperms and angiosperms is that in gymnosperms:
a.- self fertilization occurs; b.- seeds are exposed (“naked”); c.- there is no ovary wall surrounding ovules; d.- flowers generally have 4 or 5 sepals and petals.
4.- The petals of a flower are collectively known as the:
a.- corolla; b.- calyx; c.-gynoecium; d.-androecium
5.- The sepals of a flower are collectively known as:
a.- corolla; b.- calyx; c.- florus perfecti; d.- none of the above
6.- Seeds are reproductively superior to spores, because seeds are: __________________
7.- Humans use conifers
a- for their wood; b.- for the production of chemicals.; c.- in some cases as a source of food; d.- for medical purposes;
e.- for landscaping.