I. WHAT HAPPENED

PRE-ACTIVITIES/PRE-TEST

IDENTIFICATION: Complete the statements below by supplying the correct word(s) from the word pool. Write your answers in your notebook.

A. PLANT
maturation, Genetic; identical, nitrogen, Scion; stock; cambium, scutellum, Propagules, Hypocotyl; radicle, Stamen, Straightening; phytochrome, new combinations, nutrient, Pollination

1. The main advantage of asexual reproduction. In addition to its speed, is that it permits the propagation of advantageous______________ makeups since the offspring are genellcally________ with the parent.
2. Sexual reproduction on the other hand, permits__________ of traits to arise from the contributions of multiple different ancestors.
3. Certain plants produce body parts specialized for breakaway and dispersal that are known as____________.
4. In grafting, the plant that is to be asexually propagated is known as the___________ this is attached to the____________ which may be little more than a root. It is Important that the two have their layers in contact with each other.
5. In the grass seed, the cotyledon is a food-absorbing structure known as a_______________.
6. The portion of the seedling below the cotyledons is known as____________. One of the structures included in it is the future root, or___________________.
7. The root hals form in the zone of_________________ of the growing root tip.
8. When the "hook" of a dicot seedling is exposed to light during germination, it reacts by___________; the receptor substance that initiates this reaction is a pigment known as_________.
9. ______________ is an important numrlent macronutrient because it is part of nucle c acids and proteins needed by plants,
10. ___________refers to any substance required for the growth and maintenance of an organism. ​