Table 3.3: the structural and functional components of xylen Biology Form one SE
Chapter 3: Tissues: Structure and function
Chapter 3: Tissues: Structure and function
Biology For
Living or dead Structure
Complete the following table with what is suitable
Tissues

Xylem
ity 7:
ng to what you have learned in the previous section,
Jelow.
1. Tracheids
PLANT TISSUE
2. Vessels
Permanent
Meristematic tissue
3. Xylem fibers
Simple
Sclerenchyma
4. Xylem parenchyma
Phloem
1. Sieve tube
2. Companion cells
3. Phloem fibers
4. Phloem parenchyma
himal Tissues
al tissues are grouped into four basic types:
Epithelial tissue
in tissue

Juan and carol were studying invertebrates in biology. they knew that segmented or earth worms preferred a dark, moist habitat. during this lab, they would be investigating the responses of organisms called planaria or dugesia tigrina. these were simple flatworms that still had a one-way digestive system and a very simple nervous system. juan and carol placed the planaria in a petri dish containing cool, distilled water that was partially covered with black paper. they shined a light on the dish. next, they removed the paper and placed a small amount of chicken liver at one end of the dish. they added a few large salt crystals to the water. finally, they added drops of hot water to the cool water in the petri dish. their results can be seen in the data table. according to their experiment, all but one conclusion is valid.