Question

Question 1: A slide of a terminal plant bud shows what physical characteristics demonstrating growth?

Answers:

1. an actively dividing group of cells between primordial leaves with undifferentiated vascular tissue

2. a vascular system with vascular bundles

3. spongy mesophyll tissue

4. sieve tubes, vessel elements and tracheids

Question 2: As the earth warmed and dried around 150 MYA, plants requiring _______ for fertilization were no longer dominant, but were eclipsed by plants that were ______ bearing named ___________ (literally naked seeds). These plants used _____ for fertilization freeing themselves from dependence on water. As animals of the era became terrestrial with means of terrestrial reproduction strategies, plants did the same using two different structures along with internal fertilization, the _____ being internal and fertilized by a wind carried _________ grain.

Answers:

1. water, seed, charophytya, dinosaurs, zygote, pollen

2. water, seed, gymnosperms, wind, egg, pollen

3. spores, cone, tracheids, water, pollen, embryo

4. water, flower, angiosperms, animals, spore, egg

Question 3: In the pith region of a stem the vascular system consists of two major structures;

Answers:	1. Phloem with trachieds and vessel elements and xylem with sieve-tubes and companion cells
	2. Sclerechyma fibers and parenchyma cells
	3. Phloem carrying photosynthesis products and xylem carrying water with dissolved nutrients
	4. Phloem carrying water with dissolved nutrients and xylem carrying photosynthesis products.