Inorder to build the raft you have to find things that can float. You can use bamboo or alloottt of sticks . You don't want to make it to heavy or it might sink. You have to use somthing to tie it all together and make sure it will hold u. The water with push your raft up because it will have air between it and the water.
Answer:
I think Last two statements are right
The water vapor in the relatively warmer, and more moist air condensed, hence fogging your glasses. Warm moist air comes in contact with a colder surface, you get condensation.
Hope this helps!
Answer:
In plants, dead cells are not excreted, rather, they form key structural elements which support and protect living tissue as the organism grows. Two examples of useful functions are the formation of (1.) xylem vessels and (2.)sclerenchyma.
Explanation:
- Xylem vessel: mature xylem vessel is made up of dead cells called <em>vessel elements</em> aligned end-to-end; here, the ends are dissolved and the protoplasm is absent. These form long, continuous tubes that facilitate the unobstructed flow of water and minerals to other areas within plants.
- Sclerenchyma are comprised of dead cells which have secondary walls reinforced with lignin. In plants, they provide key structural support and greater mechanical strength to prevent damage or tears within the plant tissue.
